Red dot reliability, with the receipts

Medium confidence (5 sources, 3 first-hand)

• Durability: 2 of 2 passed magnum rifle recoil (manufacturer rating), sustained recoil, owner reported (AR pattern rifle in .450 Bushmaster)
• Documented failures: none documented
• Battery: 3V 2L76/DL1-3N: 50,000 hours continuous runtime (ACET technology)

Medium confidence (10 sources, 8 first-hand)

• Rounds tested: ~4,160
• Durability: 6 of 6 passed submersion, freeze, heat, drop, slide-ride recoil, mud
• Documented failures: 3
• Battery: CR2032: First-hand owner runtimes vary sharply with brightness and battery brand. CSIGunNut (owns several P-2s) measured just under 3 to 4 months on Duracell CR2032s running setting 7 on a carry gun; BlueShirtGuy reported 10 to 11 months on Energizer. Other owners report roughly 10 days to depletion at maximum brightness, versus a battery installed Jan 2023 still running 1+ year later on setting 6 all day. One owner ran two P-2s 5.5+ months continuously without the battery dying and called it an improvement over the P-1.
• Warranty: Owners report Aimpoint replaced failing P-2 units quickly under warranty.

Low confidence (5 sources, 2 first-hand)

• Documented failures: 1
• Battery: single AA (lithium, alkaline, or NiMH): 80,000 hours (~8 years) of constant operation at a standard daylight setting; 500,000+ hours on NV-compatible settings

Low confidence (4 sources, 1 first-hand)

• Battery: AA: 80,000 hours (~8+ years) continuous on standard daylight settings; 500,000+ hours on night-vision-compatible settings.

Medium confidence (9 sources, 4 first-hand)

• Durability: 5 of 6 passed drop (failed), submersion x2 (pass with caveat), freeze, heat, recoil
• Documented failures: 1
• Battery: AAA: No first-hand measured runtime to depletion exists. Two reviewers explicitly declined to test the runtime claim: Ed Friedman (Shooting Illustrated) wrote 'Full disclosure: I did not test those claims,' and Eric B (TFB) noted that verifying it 'would have to wait for a very long time, so we haven't.' Testers ran the optic always-on without exhausting a cell, but none is a controlled measurement.
• Warranty: Aimpoint factory warranty: free from defects in material and workmanship for 10 years personal use and 2 years professional / competition / law enforcement use, from date of purchase; non-transferable (original purchaser only). It is NOT a lifetime/transferable warranty despite some third-party pages saying so.

Medium confidence (8 sources, 4 first-hand)

• Durability: 2 of 2 passed water, drop
• Documented failures: 2
• Battery: CR2032: Owner ran the unit continuously at medium brightness for 2 years with no failure; battery was still going at time of writing, and the owner expected the full manufacturer-claimed 5-year life to hold.
• Warranty: Not a lifetime warranty. Aimpoint's own warranty/service page states Micro-series sights (including H-2) are covered for 10 years from date of purchase for personal use, and 2 years for professional or competition use, provided the sight has not been disassembled or tampered with.

Medium confidence (8 sources, 6 first-hand)

• Durability: 3 of 3 passed recoil x3
• Documented failures: none documented
• Battery: CR2032: No first-hand measured T-2 runtime to depletion found. Closest first-hand: a tester left a sister-model H-2 running at a medium setting for nearly 3 years on one battery before selling it (still working); another tester's personal Micro T-1 ran ~2 years and remained as bright as day one. Both are T-1/H-2, not the T-2 itself.
• Warranty: Aimpoint factory warranty: free from defects in material and workmanship for 10 years personal use / 2 years professional or competition use (manufacturer-stated).

High confidence (6 sources, 3 first-hand)

• Rounds tested: thousands
• Durability: 3 of 3 passed recoil x2, drop (pass with caveat)
• Documented failures: none documented
• Battery: DL1/3N: No first-hand measured runtime to depletion was found. Testers ran the PRO always-on for years without exhausting a battery: Eric Hung used it almost 3 years (frequently above setting 7) without battery trouble, and Adriel (Hunting Gear Guy) reported it 'completely reliable' across competition use, carrying a spare only as insurance and never needing it. None of these is a controlled measurement, so measured runtime is unknown.
• Warranty: Aimpoint factory warranty: free from defects in material and workmanship for 10 years personal use and 2 years professional / competition / law enforcement use (manufacturer-stated; non-transferable, voided by disassembly).

High confidence (9 sources, 5 first-hand)

• Rounds tested: ~500+
• Durability: 5 of 5 passed submersion, drop, freeze, heat, slide-ride recoil
• Documented failures: 2
• Recall on record
• Battery: CR123A: ~1,023 hrs at brightness setting 12 in one user test; another user test saw the low-battery indicator begin flashing at ~1,552 hrs and the optic fail to power on at ~1,648 hrs (lower brightness). Holographic design is battery-hungry vs LED red dots.
• Warranty: 10-year limited Prestige Warranty on HWS units made on/after 2017-01-01 (free repair/replace years 1-5, repair for a nominal bench fee years 5-10; transferable to subsequent owners). Units made before 2017-01-01 carried only a 2-year warranty plus a $79 bench-fee repair thereafter.

Medium confidence (7 sources, 2 first-hand)

• Durability: 2 of 2 passed recoil, drop (pass with caveat)
• Documented failures: none documented
• Battery: none (passive magnifier, no battery)
• Warranty: 10-year EOTech Prestige Warranty (covers magnifiers as well as holographic sights): free repair or replacement with a comparable product in years 1-5; in years 5-10 EOTech will evaluate and repair defects in materials and workmanship for a nominal bench fee (listed at $79). Transferable to subsequent owners for the remainder of the term.

Medium confidence (7 sources, 5 first-hand)

• Rounds tested: 500+
• Durability: 1 of 2 passed drop (mixed), slide-ride recoil
• Documented failures: 3
• Battery: CR1632: 50,000 hrs (dot only) / up to 10,000 hrs (full reticle) on mid setting
• Warranty: Holosun limited lifetime warranty; first-hand reporter's warranty replacement worked fine, consistent with Holosun's generally well-regarded replacement turnaround.

Medium confidence (6 sources, 4 first-hand)

• Rounds tested: ~200-300
• Documented failures: none documented
• Battery: CR1632: 50,000 hours at a low/medium brightness setting (manufacturer)
• Warranty: Holosun limited lifetime warranty on the metal housing and optical glass, 10-year coverage on the LED illumination system from manufacture date, product registration required; warranty honored only for units bought from Holosun or authorized dealers (not gray-market Amazon/eBay).

Medium confidence (8 sources, 6 first-hand)

• Durability: 3 of 3 passed recoil, drop, submersion (pass with caveat)
• Documented failures: none documented
• Battery: CR2032: 50,000 hr, per Holosun (manufacturer does not designate a brightness setting for the AEMS figure)
• Warranty: Holosun limited lifetime warranty on the metal structure and optical glass, plus 10 years from manufacture date on the LED/illumination/electronics; product registration required.

Medium confidence (6 sources, 4 first-hand)

• Rounds tested: ~250
• Durability: 4 of 4 passed drop x3, submersion
• Documented failures: 1
• Battery: CR1620: 50,000 hr at brightness setting 6 (CR1620 red; CR1632 green)
• Warranty: Holosun limited lifetime warranty on the metal housing and optical glass, 10-year coverage on the LED illumination system; product registration required (commercial models).

Medium confidence (5 sources, 3 first-hand)

• Rounds tested: 8000+
• Durability: 4 of 5 passed recoil endurance, dust/sand (partial), drop, submersion, freeze
• Documented failures: none documented
• Battery: CR1632: 50,000 hr at brightness setting 6 (CR1632, red reticle), per Holosun
• Warranty: Holosun limited lifetime warranty on the metal housing and optical glass; 10 years on the LED illumination system from manufacture date; product registration required to validate. Commercial models used for professional purposes, or units bought from non-authorized Amazon/eBay sellers, are not covered.

Medium confidence (10 sources, 6 first-hand)

• Rounds tested: 13,220+
• Durability: 2 of 2 passed drop (pass with caveat), submersion (pass with caveat)
• Documented failures: none documented
• Battery: CR1632: 50,000 hr at brightness setting 6 (of 10), per Holosun
• Warranty: Holosun limited lifetime warranty on the metal structure and optical glass, plus 10 years from manufacture date on the LED/illumination system; product registration required. (A 3-year term applies only to LEM / professional-line variants, not the standard commercial HE509T-RD X2.)

Medium confidence (4 sources, 2 first-hand)

• Rounds tested: 5200+
• Durability: 5 of 5 passed slide-ride recoil, recoil, freeze (pass with caveat), heat (pass with caveat), dust/sand (pass with caveat)
• Documented failures: 1
• Battery: CR1632: 50,000 hours at brightness setting 6 (manufacturer)
• Warranty: Holosun limited lifetime warranty on the metal housing and optical glass under normal personal use, with 10-year coverage on the LED illumination system from the manufacture date; product registration required to validate the warranty; warranty not honored on units sold by non-authorized Amazon resellers / gray-market channels.

Medium confidence (4 sources, 3 first-hand)

• Rounds tested: ~3,000 rounds (Dyal, firsthand)
• Durability: 2 of 2 passed impact (holstered pistol struck against door post, 15 times per side), drop (cased pistol dropped ~12 times per orientation, optic up and down, from waist height)
• Documented failures: none documented
• Battery: CR1632: 50,000 hours at setting 6 (manufacturer rating)

Medium confidence (4 sources, 3 first-hand)

• Rounds tested: thousands
• Durability: 4 of 4 passed drop x2, submersion (pass with caveat), recoil endurance
• Documented failures: none documented
• Battery: CR2032: One first-hand competitor reported never replacing the CR2032 across three years of regular IPSC use, though he attributes part of that to the solar backup and is uncertain how much was battery versus solar. This is an in-use observation, not a controlled runtime measurement.

Medium confidence (8 sources, 5 first-hand)

• Durability: 4 of 4 passed submersion x2, freeze, recoil
• Documented failures: none documented
• Battery: CR2032: 29,000 hours at the medium setting, in a stated 25,001 to 50,000 hour range depending on brightness, on a single CR2032, per Primary Arms; AutoLive motion sleep is the main runtime extender.
• Warranty: Primary Arms Limited Lifetime Warranty on PA-branded optics: fully transferable, no proof of first ownership or original receipt required, covering manufacturer defects, materials and workmanship and normal wear-and-tear affecting function; excludes misuse, abuse, accident, alteration and lost/stolen items. Reviewers (s1, s5) confirm the optic carries the PA lifetime warranty.

Medium confidence (9 sources, 7 first-hand)

• Rounds tested: ~200
• Durability: 4 of 4 passed recoil x3, submersion
• Documented failures: none documented
• Battery: CR2032: Up to 29,000 hours on the medium setting on a single CR2032, per Primary Arms, with AutoLive motion sleep cited as the runtime extender.
• Warranty: Primary Arms Lifetime Warranty on PA-branded optics: fully transferable, no proof of first ownership or original receipt required, covering manufacturer defects in materials and workmanship and normal wear-and-tear affecting function; excludes misuse, abuse, accident, alteration and lost/stolen items (s9). The manufacturer product page (s8) lists 'Lifetime Warranty' for this SKU.

Medium confidence (4 sources, 3 first-hand)

• Durability: 5 of 5 passed 15 foot drop onto deck, submersion (105F water, 20 30 min), freezer exposure, 52 inch drop test (top and both sides) (pass with caveat), field use, zero retention 100 475 yards
• Documented failures: none documented
• Battery: CR2032 3V lithium coin: up to 29,000 hours on medium setting; separately rated in the 25,001-50,000 hour bracket for overall battery life across settings
• Warranty: Primary Arms Lifetime Warranty

Medium confidence (4 sources, 3 first-hand)

• Rounds tested: 750
• Durability: 2 of 3 passed impact/blunt force abuse, environmental (freeze / spray / submersion), mount hardware retention (failed)
• Documented failures: 1
• Battery: CR2032: 50,000 hours (CR2032, per manufacturer spec page and cited independently by TTAG)
• Warranty: 2-year warranty on electro-optics per manufacturer; replacement units are new (not refurbished), an RMA is required, and QC is performed by "certified technicians" in Tucson, AZ.

Low confidence (4 sources, 2 first-hand)

• Warranty: Manufacturer states coverage under Sig's Infinite Guarantee lifetime warranty. Claim via search-result snippet (source page returned 403 on direct fetch); not independently corroborated by a forum warranty-claim report.

Medium confidence (5 sources, 4 first-hand)

• Durability: 5 of 5 passed drop test (multiple sides, chest height, mounted to rifle), hose/water spray, fired afterward, long term abuse: mud, gravel, rain, overnight freeze, submersion, accidental creek dunking, two month rifle T&E: falls onto limestone gravel, repeated bumps against vehicles/gun safe, control finish/scratch resistance, field use
• Documented failures: none documented
• Battery: single CR2032: Sig's own Gen II operator's manual (s5) states 35,000 hours runtime; separate marketing/press copy and reviews (s1, s3) cite 40,000 hours. Gen I predecessor was rated 20,000 hours.

Medium confidence (7 sources, 3 first-hand)

• Durability: 4 of 4 passed drop, water, cold/freeze, environmental (humid/cold/hot use)
• Documented failures: none documented
• Battery: CR2032: 25,000 hours at medium brightness (manufacturer and most reviewers); Guns & Ammo cites 20,000+ hours

Medium confidence (5 sources, 4 first-hand)

• Rounds tested: ~700 rounds
• Durability: 3 of 3 passed drop test, submersion, cold weather (pass with caveat)
• Documented failures: 1
• Battery: AAA: 50,000 hours
• Warranty: SIG's "Infinite Guarantee" limited lifetime warranty, per manufacturer materials.

Low confidence (5 sources, 3 first-hand)

• Durability: 5 of 5 passed submersion x3, freeze, heat (pass with caveat)
• Battery: AA: One OpticsPlanet reviewer reported running the same first AA battery for about a year with no issues, consistent with the manufacturer's claimed runtime. (An earlier draft of this record also cited a round count alongside that reviewer's claim; that figure actually comes from a different OpticsPlanet reviewer's separate zero-retention comment, not from the battery-duration reviewer, so it has been removed here to avoid attributing two owners' observations to one account.)

Medium confidence (7 sources, 5 first-hand)

• Rounds tested: ~1,200 rounds (single owner, across multiple rifles)
• Durability: 3 of 4 passed Water submersion (brief), 5 foot drop onto rock (pass with caveat), Shotgun pellet impacts (.22 ratshot, .410 birdshot, 12 gauge birdshot), Direct .22LR 40gr minimag hit (failed)
• Documented failures: 1
• Battery: CR123A: Over 100,000 hours on a single CR123A with MOTAC enabled on the base Romeo8T (manufacturer spec); the Romeo8T-AMR variant is separately spec'd by Sig at up to 50,000 hours, likely due to the added magnifier-detection sensor draw

Medium confidence (12 sources, 9 first-hand)

• Rounds tested: ~1,200
• Durability: 4 of 4 passed submersion, freeze (pass with caveat), slide-ride recoil, recoil
• Documented failures: 3
• Battery: CR1632: No rigorous controlled drain test was published. Daniel Reedy observed roughly under three weeks of runtime at MAXIMUM brightness across two of his write-ups (s1, s9); this is one tester, not independent corroboration. The 13,000-hour medium-setting figure was not verified by any measurement.
• Warranty: Steiner Heritage Warranty: lifetime on mechanical/optical, 3 years on electronics; transferable between owners with no receipt or registration required (U.S. and Canada, items made since 2014; unauthorized-retailer purchases may be denied). Warranty service praised as fast first-hand: Reedy received a reply before noon the next business day and a full replacement in about two weeks.

High confidence (4 sources, 4 first-hand)

• Rounds tested: 1500+
• Durability: 5 of 5 passed drop (pass with caveat), drop, submersion, thermal drift (pass with caveat), recoil
• Documented failures: 1
• Battery: CR2032: 5 years continuous-on at daylight setting 3 (red 2 MOA, CR2032), per Trijicon and cited consistently across reviewers; the green-dot MRO variant is far shorter at about 1 year due to the laser-diode emitter.

Medium confidence (9 sources, 6 first-hand)

• Rounds tested: ~2,000-3,000
• Durability: 4 of 4 passed drop, slide-ride recoil x2, recoil
• Documented failures: none documented
• Battery: CR2032: 6+ years of continuous operation at Setting 5 (stated equivalently as 50,000+ hours)
• Warranty: Trijicon limited lifetime warranty on the optical system and metal housing for the lifetime of the original owner; electronics/illumination are covered separately (Trijicon's documented standard for its LED optics is 5 years from date of manufacture). CAVEAT: the readable Trijicon warranty card (s8) predates and does not name the RCR, so the RCR-specific electronics term could not be confirmed from a primary readable source; the current Trijicon warranty page returned HTTP 403.

Medium confidence (7 sources, 5 first-hand)

• Rounds tested: ~14,900
• Durability: 2 of 2 passed drop, recoil endurance
• Documented failures: 1
• Battery: CR2032: ~3 years continuous dot-only at brightness setting 5 (Trijicon marketing); spec-sheet upper bound cited as up to 50,000 hr
• Warranty: Lifetime warranty on the optic and metal housing (original owner); electronics/LED illumination covered 5 years from date of manufacture. Per a resolving reseller restatement of Trijicon's policy; Trijicon's own warranty page returned HTTP 403 (firstHand:false).

High confidence (8 sources, 6 first-hand)

• Rounds tested: 20000+
• Durability: 6 of 6 passed slide-ride recoil, drop, submersion, freeze, heat, submersion (pass with caveat)
• Documented failures: 2
• Battery: CR2032: up to 4 years continuous (CR2032), per Trijicon; Sage Dynamics observes ~2-5 years 'depending on use' and recommends annual replacement

Medium confidence (3 sources, 3 first-hand)

• Durability: 6 of 8 passed 5 minute water submersion, One handed slide racking against barricade (15 reps, two magazines), Concrete drop test (pass with caveat), Two shoulder height drops onto concrete (partial), Mallet strikes to housing (front and rear), "Shoot the square" adjustment test, Cold weather test (19°F) (mixed), Group violent slide racking against wooden fence posts (~10 15 min, ~12 shooters)
• Documented failures: none documented
• Battery: CR2032: Up to 4 years at the bottom half of 8 brightness settings

High confidence (7 sources, 5 first-hand)

• Rounds tested: 5000+
• Durability: 3 of 3 passed drop, slide-ride recoil, crush runover
• Documented failures: 3
• Battery: CR2032: 3 yr continuous at brightness setting 4 of 8 (red models, per Trijicon); 2 yr at setting 4 of 8 (green 2.5 MOA model)

Medium confidence (6 sources, 5 first-hand)

• Rounds tested: several hundred rounds (exact count not given)
• Durability: 6 of 6 passed drop, water submersion, heat, freeze, drop (related open emitter Defender CCW SKU, not the Enclosed model) (pass with caveat), water submersion (related open emitter Defender CCW SKU, not the Enclosed model) (pass with caveat)
• Documented failures: none documented
• Battery: CR2032, hybrid battery + solar power system: 35,000 hours without solar assist, 150,000 hours with solar assist
• Warranty: Vortex VIP warranty: unlimited, unconditional, lifetime, no-questions-asked repair/replace, per the manufacturer's product page.

Medium confidence (5 sources, 4 first-hand)

• Rounds tested: 1,000+ rounds (per individual review); manufacturer claims 100,000 rounds of in-house recoil testing
• Durability: 8 of 8 passed drop test (chest height unloaded pistol onto concrete), repeated bench strikes at 500/1000 round intervals, submersion (IPX7), drop test (~6 ft onto steel truck bed and granite) (pass with caveat), slide racking off housing edge, deliberate impact slams (tables, walls, boots) and chest high drops onto range floor, hose spray water exposure, field environmental exposure (rain, humidity, grit, mud, sweat)
• Documented failures: 1
• Battery: CR1632: ~9,000 hours at brightness setting 5
• Warranty: Vortex VIP: Unlimited, Unconditional, Lifetime Warranty

Medium confidence (6 sources, 4 first-hand)

• Rounds tested: several hundred
• Durability: 3 of 3 passed recoil, drop, heat
• Documented failures: none documented
• Battery: CR2032: Vortex does not publish an hours figure for the Gen II; runtime is managed by a 14-hour auto-shutoff that powers the illumination down after inactivity to preserve the cell, per the manufacturer.
• Warranty: Vortex VIP Warranty: a fully transferable, unlimited lifetime warranty that requires no warranty card, no receipt and no proof of purchase, and covers damage regardless of fault or cause (it is a no-fault repair-or-replace promise, not limited to manufacturing defects). Per the manufacturer (s6).

Medium confidence (7 sources, 3 first-hand)

• Rounds tested: hundreds
• Durability: 2 of 2 passed recoil x2
• Documented failures: none documented
• Battery: CR2032: 30,000 hours (over 3 years) of constant-on use at daylight setting 7 of 10, and longer on the 4 night-vision settings, via Aimpoint ACET technology (manufacturer claim).
• Warranty: Aimpoint factory warranty: 10 years personal use and 2 years professional / competition use against defects in material and workmanship; non-transferable, voided by disassembly (manufacturer-stated).

Medium confidence (6 sources, 5 first-hand)

• Rounds tested: ~3,000
• Durability: 3 of 3 passed recoil endurance, drop (pass with caveat), freeze
• Documented failures: none documented
• Battery: CR2032: ~1,000 hr at medium brightness (first-hand observation, not a controlled drain test)
• Warranty: Bushnell limited lifetime warranty (Ironclad) per the manufacturer; not independently tested by a cited source.

Low confidence (5 sources, 4 first-hand)

• Rounds tested: 500+
• Durability: 3 of 3 passed drop test, water submersion, extended carry/range use
• Documented failures: none documented
• Battery: CR1620: 50,000 hours on the lowest brightness setting
• Warranty: Lifetime warranty on the metal housing/optical structure, but only a 5-year warranty on the LED illumination system, per manufacturer

Low confidence (6 sources, 3 first-hand)

• Rounds tested: 30
• Durability: 1 of 1 passed recoil (magnum shotgun loads)
• Documented failures: none documented
• Battery: CR2032: 15,000+ hours (approximately 2 years)
• Warranty: 3-year limited warranty, confirmed verbatim in the official user guide (s6: "Crimson Trace Corporation (CTC) warrants that this product will be free from defects in materials and workmanship for a period of three years") and on the primaryarms.com listing (s4). Some other retailer listings reference a lifetime warranty for the original owner; that claim was not independently confirmed against a Crimson Trace source. Housing described as aircraft-grade anodized aluminum, water-resistant and shock-resistant (no IP/waterproof depth rating found).

Low confidence (4 sources, 1 first-hand)

• Durability: 2 of 2 passed drop, submersion (pass with caveat)
• Documented failures: none documented
• Battery: CR2032: 50,000 hr at brightness setting 6 (CR2032), per Holosun
• Warranty: Holosun limited lifetime warranty on the metal housing and optical glass, 10-year coverage on the LED illumination system; product registration required (commercial models).

Medium confidence (7 sources, 5 first-hand)

• Rounds tested: ~5,000-7,000
• Durability: 3 of 3 passed recoil endurance, drop (pass with caveat), submersion (pass with caveat)
• Documented failures: 2
• Battery: none (passive magnifier, no battery)
• Warranty: Holosun warrants the metal housing and optical glass for the life of the product under normal personal use (the entire passive magnifier sits in this lifetime tier; the separate 10-year LED/electronics tier does not apply). Registration is required to validate the warranty, which owners flag as a friction point versus no-questions policies. MANUFACTURER-STATED via s6, firstHand:false.

Low confidence (5 sources, 2 first-hand)

• Documented failures: 1
• Battery: CR2032: 50,000 hours on a single CR2032 (Holosun-rated, roughly setting 6 / moderate brightness); 12 brightness settings (10 daylight + 2 night-vision)
• Warranty: Holosun Limited Lifetime Warranty on the metal housing and optical glass; the illumination/electronics (LED) covered 10 years from the manufacture date; applies to the first owner upon product registration (per the current Holosun warranty policy, s5).

Low confidence (2 sources, 1 first-hand)

• Durability: 1 of 1 passed zero retention (hand strikes, bumping on wood, tapping on granite)
• Battery: CR1632: 15,000+ hours (~1.7 years of continuous use)
• Warranty: MEPROGUARD warranty included; specific terms not detailed in the sources found. A separate 'Consumer Warranty Certificate for Optics (No Tritium)' PDF exists but its terms were not reviewed.

Low confidence (6 sources, 2 first-hand)

• Rounds tested: 5000+
• Durability: 3 of 3 passed recoil endurance, recoil, drop
• Documented failures: none documented
• Battery: CR1632: 15,000 hr at lowest setting (about 625 days), per Nikon
• Warranty: Marketed at launch with a Nikon 5-year warranty (s3, s4). That coverage is now effectively orphaned: in September 2019 Nikon restructured its optics warranties and dropped electrical components to a 1-year limited warranty (s6), and in late 2019 Nikon announced it was exiting the US riflescope business (s5); the P-Tactical reflex line was caught in the same wind-down and is now discontinued (retailers list it discontinued by Nikon). With no current production, no restock, and depleted parts/accessories, post-exit warranty and support are limited and uncertain. Treat the 5-year figure as a nominal launch claim, not dependable present-day coverage.

Low confidence (8 sources, 6 first-hand)

• Durability: 2 of 2 passed submersion, recoil
• Documented failures: none documented
• Battery: CR2032: Up to 50,000 hours at a medium setting for the 2 MOA dot version, and roughly 12,000 hours (about a year) for the ACSS-CQB reticle version, which draws more current; on a single CR2032, per Primary Arms.
• Warranty: Primary Arms Limited Lifetime Warranty on all PA-branded optics purchased on or after Jan 1, 2021: fully transferable with no proof of first ownership or original receipt required, covering manufacturer defects, materials/workmanship and normal wear-and-tear affecting function; excludes misuse, abuse, accident, alteration and lost/stolen items.

Low confidence (4 sources, 2 first-hand)

• Rounds tested: ~500 rounds (300 through a CZ P10F, 250 through a Springfield Operator AOS) by one reviewer; separate ~1 year / "thousands of rounds" of carry use on the AMSc variant by another
• Durability: 2 of 2 passed housing / build quality (pass with caveat), zero retention
• Documented failures: none documented
• Battery: CR2032 (also compatible with CR2025): 20,000 hours on CR2032 / 13,000 hours on CR2025 (manufacturer's average daylight setting)

Low confidence (6 sources, 3 first-hand)

• Durability: 2 of 2 passed field carry / weather exposure, water immersion (pass with caveat)
• Documented failures: none documented
• Battery: CR2025 / CR2032 / CR2050: 600+ rounds with no reported battery life discrepancy (secondhand, Guns.com)
• Warranty: Limited Lifetime Warranty, serviced through a UK repair center with a stated 4-6 week turnaround, covering faulty components on inspection.

Low confidence (5 sources, 4 first-hand)

• Rounds tested: 300+
• Documented failures: none documented
• Battery: CR2032: No independent tester ran the battery to depletion; test durations (weeks to a few months) were too short to verify the 2-3 year manufacturer claim.
• Warranty: Warranty terms are reported inconsistently across sources: Huntbums states lifetime (US) / 2 years (international), while TFB states Limited Lifetime (materials/workmanship) plus a separate 7-year electronics warranty. This discrepancy is unresolved and may reflect different SKUs, regions, or a policy change over time rather than an error in either source.

Low confidence (3 sources, 2 first-hand)

• Durability: 1 of 1 passed field/range durability, owner reported (pass with caveat)
• Documented failures: none documented

Medium confidence (5 sources, 4 first-hand)

• Rounds tested: 700+
• Durability: 3 of 3 passed recoil endurance x3
• Documented failures: none documented
• Battery: CR1632: 20,000 hours with MOTAC motion activation
• Warranty: Sig Sauer Electro-Optics Infinite Guarantee: fully transferable, no receipt or warranty card required, covers damage/defects at no charge; plus a separate 5-year limited warranty on electronic components (tritium excluded). A real, meaningful warranty signal.

Low confidence (3 sources, 2 first-hand)

• Durability: 1 of 1 passed adjustment tracking / repeatability
• Documented failures: none documented
• Battery: CR1632: ~20,000 hours (MOTAC motion-activated illumination)

Medium confidence (10 sources, 7 first-hand)

• Rounds tested: ~3,000 rounds (individual owner unit, not a controlled test)
• Durability: 1 of 1 passed water submersion (IPX 7, 1m/30min) (pass with caveat)
• Documented failures: 1
• Battery: CR1632 (top-loading): 20,000+ hours on one setting

High confidence (7 sources, 5 first-hand)

• Rounds tested: ~1,800
• Durability: 6 of 6 passed submersion x2, drop, freeze, recoil x2
• Documented failures: 1
• Battery: CR2032: 40,000+ hours of normal use (CR2032) with MOTAC motion activation, per Sig Sauer (Shooting Illustrated's 2017 writeup cited 50,000 hours).
• Warranty: Sig Sauer Electro-Optics Infinite Guarantee: unlimited lifetime, fully transferable, no receipt or warranty card required, no charge; plus a separate 5-year limited warranty on electronic components (s5). A meaningful warranty signal, and first-hand reports confirm Sig has actually replaced failed units (s6).

Low confidence (8 sources, 5 first-hand)

• Rounds tested: ~1,000
• Durability: 3 of 3 passed recoil endurance x2, submersion (pass with caveat)
• Documented failures: 2
• Battery: CR123A: 200 to 2,000 hours (CR123A), per Sightmark
• Warranty: Sightmark Limited Lifetime Warranty against defects in materials and workmanship (10-year term outside the US). IMPORTANT measured-vs-marketing: the light-emitting components (the LED illumination) carry only a 3-year warranty and disposable batteries are not covered, so 'lifetime' applies to the housing/workmanship, not the electronics. Registration within 30 days or proof of purchase required.

Medium confidence (9 sources, 4 first-hand)

• Durability: 3 of 3 passed drop, submersion, recoil
• Documented failures: none documented
• Battery: CR123A: 3,000 hours maximum on a single CR123A, per Swampfox.
• Warranty: Limited lifetime warranty against manufacturing defects and material flaws on the housing and glass, with the illumination/electronic system warrantied 10 years from manufacture, plus a 50,000-round guarantee (Swampfox repairs or replaces the optic if it fails before 50,000 rounds; published on a separate Swampfox guarantee page, s9) and a 30-day satisfaction return window, per Swampfox warranty page (s6).

Medium confidence (7 sources, 5 first-hand)

• Rounds tested: ~770
• Durability: 3 of 3 passed recoil x2, heat (pass with caveat)
• Documented failures: 1
• Battery: CR123A: When left actively powered on, runtime tracks roughly to the ~1,500 hr spec: Baxter (s3) kept it on for over two months without a swap. Real-world standby is far worse: RECOIL (s1) went through 'nearly a dozen' CR123A batteries over about a year of intermittent carry because the shake-awake rest mode keeps drawing power and there is no true off switch.
• Warranty: Vortex VIP Warranty: unlimited, unconditional, lifetime, fully transferable, no-fault. Per Vortex (s8): repaired or replaced at no charge regardless of how it happened, whose fault it was, or where purchased; no receipt, registration, or warranty card required. This no-questions lifetime policy is a meaningful reliability-reputation backstop, the same VIP coverage that anchors the rest of the Vortex line.

Medium confidence (6 sources, 4 first-hand)

• Durability: 2 of 2 passed recoil endurance, recoil
• Documented failures: 1
• Battery: CR2032: 50,000 hours at brightness setting 6 (Gen 2 CF-RD2, Vortex spec; the Gen 1 CF-RD1 was rated 7,000 hours). Setting/level dependent; equates to roughly 5.7 years continuous.
• Warranty: Vortex VIP Warranty: unlimited, unconditional, lifetime, no-fault. Per Vortex (s5): 'we'll repair or replace it at no charge to you. It doesn't matter how it happened, whose fault it was, or where you purchased it.' No receipt, no registration, no warranty card, fully transferable; excludes loss, theft, and deliberate/cosmetic damage. This no-questions replacement policy is a major reliability-reputation offset for a value-tier optic and is consistently praised across the first-hand reviews.

Low confidence (7 sources, 5 first-hand)

• Rounds tested: ~5,000 (est., generation unconfirmed)
• Durability: 3 of 3 passed recoil endurance (pass with caveat), drop (pass with caveat), freeze (pass with caveat)
• Documented failures: 1
• Battery: AAA: 50,000 hours (Vortex spec; setting not stated, consistent with a low/medium brightness setting)
• Warranty: Vortex VIP Warranty: unlimited, unconditional, lifetime, no-fault. Per Vortex (s5): 'we'll repair or replace it at no charge to you. It doesn't matter how it happened, whose fault it was, or where you purchased it.' No warranty card, no receipt, no time limit, fully transferable; excludes loss, theft, and deliberate/cosmetic damage. Multiple first-hand owners above used it successfully for free replacement. This no-questions policy is a major reliability-reputation offset for a budget optic.

Low confidence (5 sources, 1 first-hand)

• Rounds tested: 500
• Battery: CR2032: 50,000 hours at medium brightness setting
• Warranty: Athlon references its general 'Lifetime Warranty' program on the product page; no specific warranty terms or claims-process detail found for this SKU.

Medium confidence (10 sources, 8 first-hand)

• Rounds tested: thousands
• Durability: 3 of 3 passed slide-ride recoil, recoil, drop (pass with caveat)
• Documented failures: 3
• Battery: CR1632: up to 5 years (Burris), predicated on the 8-hour auto-shutoff and not a continuous-on runtime
• Warranty: Burris Forever Warranty (now rebranded the Burris Signature Warranty, coverage unchanged): lifetime, fully transferable to future owners, no receipt required, covering defects in materials and workmanship on non-thermal optics. In practice owners (s8, s9, s10) had FastFire units repaired/replaced without receipt hassle, though one reported a lengthy email diagnostic before approval. A citable reliability-reputation signal for a budget optic.

Medium confidence (4 sources, 2 first-hand)

• Durability: 2 of 2 passed drop (pass with caveat), round count / live fire endurance
• Documented failures: 3
• Battery: CR2032: roughly 1,000 hours on medium brightness per Pew Pew Tactical, needing a fresh CR2032 about once a year with moderate use; can go up to ~18 months without draining if used infrequently
• Warranty: Bushnell lists a lifetime warranty on its product page; no details of warranty claim experiences were found in the research.

Low confidence (7 sources, 3 first-hand)

• Battery: CR2032 3V lithium: Manufacturer states ~5,000 hours on a single CR2032 (intensity-dependent); a secondary source (Optics Trade) summarizing the same spec sheet cites up to 3,000 hours instead, a discrepancy that could not be reconciled.
• Warranty: 30-year manufacturer warranty

Medium confidence (5 sources, 3 first-hand)

• Rounds tested: 100-500
• Durability: 3 of 3 passed drop test (holster height onto brick/gravel, slide cycled against wood and concrete), submersion (IPX7, 1m/30min), drop test (chest height onto gravel, 3x per unit, unloaded) (pass with caveat)
• Documented failures: 1
• Battery: CR2032: 50,000 hours (~5.7 years)

Medium confidence (5 sources, 3 first-hand)

• Durability: 4 of 5 passed Long term round count / field use (10,000+ rounds), Water submersion, Impact / drop / rough handling, Thermal cycling (proxy unit), Ballistic damage tolerance (proxy unit) (partial)
• Documented failures: 1
• Recall on record
• Battery: 2x AA: One owner changed the battery only once despite leaving the sight powered on continuously for years, far exceeding rated hours in practice.

Medium confidence (7 sources, 4 first-hand)

• Durability: 2 of 4 passed thermal cycling (cold to 30/ 40F, heat to ~130F), 5 foot drop onto rock (pass with caveat), shotgun pellet hits (.22 ratshot, .410 birdshot) (partial), sub zero freeze then fire (~ 47F) (mixed)
• Documented failures: 5
• Recall on record
• Battery: 2x AA: 2,500 continuous hours on lithium AA, or 2,200 hours on alkaline AA, at nominal brightness setting 12, room temperature
• Warranty: EOTech customer service is repeatedly credited by owners with repairing or replacing problem units free of charge, including for second-hand buyers and units outside the original warranty window.

Medium confidence (4 sources, 2 first-hand)

• Rounds tested: 12,000+
• Durability: 1 of 2 passed long term carry/lens and housing wear, zero retention under sustained use (failed)
• Documented failures: 1
• Battery: CR1632: Went two full years without a battery change on one owner's unit, with zero reported issues.

Low confidence (4 sources, 2 first-hand)

• Durability: 2 of 2 passed drop test, cold weather firing
• Documented failures: 2
• Battery: CR1632: 50,000 hours at brightness setting 6
• Warranty: One owner's 507C V2 (predecessor to this X2 model) died twice at the range; Holosun sent an RMA form the same day it was contacted, received the returned unit the following week, and offered either a straight V2 replacement or a free upgrade to the X2, which the owner accepted and reported being very happy with. This is evidence of Holosun's warranty responsiveness, not of an X2-specific failure.

Low confidence (4 sources, 3 first-hand)

• Rounds tested: ~6,000 (single forum report)
• Documented failures: 2
• Battery: internal rechargeable, non-removable, solar-assisted: 20,000-hour internal rechargeable battery reserve, solar-assisted for effectively indefinite runtime under normal light exposure
• Warranty: At least one user with a snapped screw head had to send the slide back for repair due to a stripped hole; no broader warranty-turnaround data found.

Low confidence (8 sources, 4 first-hand)

• Rounds tested: ~350 rounds (M&P) and ~275 rounds (Glock)
• Durability: 1 of 1 passed shock (manufacturer spec) (pass with caveat)
• Documented failures: 2
• Battery: internal non-removable rechargeable: 20,000-hour reserve with continuous solar recharge
• Warranty: RMA/warranty service was used successfully by at least some owners per s1, but no detail on turnaround time or process was found.

Medium confidence (7 sources, 5 first-hand)

• Rounds tested: 14300
• Durability: 5 of 6 passed recoil x2, drop (mixed), submersion, freeze, heat
• Documented failures: 3
• Battery: CR2032: inconsistent; reviewer changes battery every ~6 months; some users every few months, others ~yearly
• Warranty: Leupold Full Lifetime Guarantee: free repair or replacement for any owner (transferable, no proof of purchase required), explicitly covering the electronics. The DPP's documented weakness is recoil-induced electronic/dot failure in the low-thousands of rounds (see failures), a mid-life pattern rather than out-of-box mortality; no first-hand DOA/early-death rate data was found.

Medium confidence (6 sources, 5 first-hand)

• Durability: 1 of 2 passed Detach/remount and return to zero, Dark to light reticle washout (failed)
• Documented failures: 2
• Battery: none (self-powered: fiber optic for daylight, tritium for low-light/night)
• Warranty: 10-year warranty on tritium illumination; lifetime 'MEPROGUARD' warranty on the device itself, per manufacturer.

Medium confidence (4 sources, 2 first-hand)

• Rounds tested: thousands (over one year of use)
• Durability: 2 of 2 passed shotgun recoil (12 gauge), long term round count / zero retention
• Documented failures: 1
• Battery: CR1632: roughly two years of continuous use on one CR1632 cell
• Warranty: Lifetime 'MEPROGUARD' warranty referenced on the manufacturer's product page.

Low confidence (6 sources, 5 first-hand)

• Durability: 1 of 1 passed field handling / turret feel
• Battery: CR2032: 20,000 hours at medium illumination setting via AUTOLIVE motion-activation
• Warranty: Limited Lifetime Warranty covering manufacturing defects and materials, transferable to non-first owners, applicable to units purchased on or after January 1, 2021.

Low confidence (5 sources, 0 first-hand)

• Battery: CR2032 3V lithium: 50,000 hours on medium setting
• Warranty: Lifetime warranty covering repair/replace for material or workmanship defects and normal wear (manufacturer-stated).

Low confidence (7 sources, 6 first-hand)

• Rounds tested: 700 rounds (across multiple sessions), one owner
• Durability: 2 of 4 passed auto brightness sensor / direct sunlight visibility (mixed), battery contact under recoil (pass with caveat), mounting screw retention under recoil (mixed), zero retention / mounting
• Documented failures: 3
• Battery: CR2032, 3V: No first-hand runtime-to-depletion test was found. One owner checked battery voltage during troubleshooting (3.05V on the original cell vs. 3.15V on a replacement) to rule out the battery as the cause of a sunlight-visibility issue; this was a diagnostic voltage check, not a life/runtime measurement. Separately, one owner (bllefkay, s7) reported a battery needed replacing after roughly one month (see failures[]); a single report, possibly a defective cell, but it is notably far short of any claimed figure.
• Warranty: A first-hand reviewer noted the unit ships with a warranty card but gave no detail on warranty terms or process. Separately, a forum moderator recommended a warranty claim for a user whose auto-brightness sensor appeared to be faulty in direct sunlight.

Medium confidence (5 sources, 4 first-hand)

• Battery: CR1632: SIG Talk's battery-life thread (s5) has one confirmed report of total battery death after 37 days against the 20,000-hour spec, corroborated on independent re-search. Thread discussion attributes this partly to a bitter/protective coating on some CR1632 coin cells interfering with electrical contact (suggested fix: wipe contacts with alcohol) and to the battery cap not being fully tightened. A separate 6-to-8-week battery-death report and a 'randomly shuts off when shooting' complaint appear to come from a different, uncited SIG Talk thread ('Romeo X Compact problems') rather than s5 itself, so that figure is not confirmed as belonging to the cited source and should be treated as a lead, not fact. This forum content was recovered only via search-engine snippets (direct fetch was blocked/paywalled), so all of it should be re-verified if possible.
• Warranty: At least one SIG Talk poster describes SIG customer service as responsive, replacing an optic 'no questions asked' within about 10 days; exact thread attribution is uncertain (see battery.note). Manufacturer's Infinite Guarantee/Limited Lifetime Warranty on electro-optics applies per SIG's own product page.

Medium confidence (11 sources, 8 first-hand)

• Documented failures: 5
• Recall on record
• Battery: CR1632: 20,000 hours at medium brightness setting, CR1632 cell
• Warranty: Forum owners describe planning to contact or contacting SIG for warranty service after early failures (dead unit at ~600 rounds, s4; dot dropout issue, s5); no details found on turnaround time or outcome.

Low confidence (5 sources, 2 first-hand)

• Durability: 0 of 1 passed recoil / mount retention (.45 70 Marlin, ~10 rounds) (mixed)
• Battery: CR2032, side-loading: 50,000+ hours
• Warranty: Sig's 'Infinite Guarantee' transferable lifetime warranty, no receipt required, per manufacturer.

Medium confidence (7 sources, 5 first-hand)

• Rounds tested: ~2,000 (EDC use)
• Durability: 3 of 4 passed drop x2, submersion, submersion (failed)
• Documented failures: 1
• Battery: CR2032: 850 hours at max brightness, 8,100 hours at medium (Travis Pike / The Truth About Guns). Rick Dembroski (Refactor Tactical) reported the same 850hr/8,100hr figures plus a low setting at roughly 9,000 hours, and roughly 2 years of real-world life with Shake 'N Wake active.
• Warranty: Gun Digest describes a 'solid warranty' and a good customer service experience. Refactor Tactical cites Swampfox's 50,000-round guarantee covering damage or failure (the review notes this guarantee is framed broadly enough to reportedly cover even painting the optic).

Low confidence (4 sources, 2 first-hand)

• Durability: 2 of 2 passed drop test, field carry / range use
• Documented failures: none documented
• Battery: CR2032: 50,000 hours
• Warranty: Limited Lifetime Warranty on manufacturing/material defects, with 10-year coverage on the LED emitter and lifetime coverage on all other components; excludes cosmetic or intentional damage and lost/stolen units, per manufacturer spec page (s3).

Medium confidence (5 sources, 4 first-hand)

• Durability: 2 of 2 passed field use (dynamic shooting sessions, rain exposure, accidental drop) (pass with caveat), out of box build quality inspection
• Documented failures: 3
• Battery: CR2032: Up to 150 hours on highest brightness setting; up to 30,000 hours on lower settings
• Warranty: Backed by Vortex's unconditional lifetime VIP warranty. Forum posters (s3) confirmed the warranty is strong and transfers fully to secondhand/used units.

Medium confidence (7 sources, 6 first-hand)

• Durability: 4 of 4 passed field/rough use (no formal drop or freeze test) (pass with caveat), recoil and sustained fire heat (piston guns: SCAR17, AK Ultimak), repeated re zeroing / multi gun use, long term ownership (backpack .300 rifle)
• Documented failures: 4
• Battery: CR2032: 150,000 hours (CR2032, with Auto D-TEC solar/battery switching)
• Warranty: Vortex unconditional lifetime warranty (VIP)

Low confidence (6 sources, 4 first-hand)

• Durability: 2 of 3 passed recoil endurance, recoil, vibration (failed)
• Documented failures: 1
• Battery: CR2: up to 80,000 hours on brightness setting 6 (Vortex spec, relayed first-hand by s1). CR2 battery confirmed as included on the Vortex spec page (s6).
• Warranty: Vortex VIP Warranty: unlimited, unconditional, lifetime, no-fault. Per Vortex (s5): 'If your Vortex product, whether a riflescope, red dot, rangefinder, apparel, or accessory, becomes damaged or defective, we'll repair or replace it at no charge to you,' and 'It doesn't matter how it happened, whose fault it was, or where you purchased it.' Excludes loss, theft, deliberate damage, and cosmetic damage that does not hinder performance. This no-questions lifetime replacement policy is a major reliability-reputation signal that offsets the budget tier's higher QC variance.

Medium confidence (4 sources, 3 first-hand)

• Rounds tested: thousands
• Durability: 3 of 3 passed slide-ride recoil x2, recoil endurance
• Documented failures: 2
• Battery: CR1632: 150 hours at highest setting; up to 30,000 hours at lowest setting (Vortex spec, relayed first-hand by s3). Note: s1 lists ~3,000 hours on lower settings, which conflicts with the 30,000-hour Vortex figure and reads as a likely typo.
• Warranty: Vortex VIP Warranty: unlimited, unconditional, lifetime, no-fault. Per Vortex (s4): 'If your Vortex product becomes damaged or defective, we'll repair or replace it at no charge to you. It doesn't matter how it happened, whose fault it was, or where you purchased it.' No receipt, registration, or warranty card required; if not repairable, replaced with equal or better. Excludes loss, theft, deliberate damage, and cosmetic damage that does not hinder performance. This no-questions replacement policy is a major reliability-reputation signal that offsets the budget tier's higher QC variance.

Low confidence (9 sources, 6 first-hand)

• Durability: 1 of 1 passed Zero retention, rimfire pistol
• Documented failures: 2
• Battery: CR2032: Up to 150 hours on highest setting, up to 30,000 hours on lower settings (CR2032)
• Warranty: Unlimited, unconditional lifetime VIP warranty per manufacturer. General sentiment in forum discussion was that Vortex customer service is responsive when problems occur.

Medium confidence (6 sources, 5 first-hand)

• Rounds tested: ~300 rounds (100 accuracy + 200 reliability) through a Sparc AR/VMX-3T combo
• Durability: 2 of 4 passed splash/weather exposure, flip mount retention/actuation (pass with caveat), flip mount hinge tightness over time (mixed), mount compatibility (30mm hole fit) (failed)
• Documented failures: 2
• Battery: none (passive optical magnifier, no battery)
• Warranty: Unlimited, unconditional lifetime VIP Warranty per Vortex.

Medium confidence (5 sources, 4 first-hand)

• Durability: 1 of 3 passed recoil (failed), recoil lens integrity (failed), mounting/zero retention (pass with caveat)
• Documented failures: 2
• Battery: CR2032: 20,000 hours in average daylight per Shield Sights (manufacturer page, s1); secondary sourcing translates this to roughly 2-3 years of always-on use, or up to 4 years in dark storage
• Warranty: Lens damage from recoil/firing is explicitly not covered under warranty; affected OpticsPlanet reviewers had to ship the optic to the UK for a paid repair (~$90). Separately, on the mounting-surface zero-shift case (s5), Walther and Shield Sights both provided warranty service the owner described as good.

Low confidence (1 source, 0 first-hand)

• Documented failures: none documented
• Battery: LR44
• Warranty: Tacticon advertises a lifetime warranty plus a no-hassle 100% satisfaction guarantee on the Predator V2 (manufacturer marketing). This is a warranty/return promise, not a measured durability spec, and no first-hand data on warranty turnaround or DOA/infant-mortality rates was found.

Low confidence (3 sources, 0 first-hand)

• Documented failures: none documented
• Battery: CR2032: no published runtime hour figure; CR2032, two cells included
• Warranty: Marketed as a 'lifetime warranty' on product pages, but Tacticon's stated policy is a 2-Year Limited Lifetime Manufacturer Defect Warranty covering manufacturing defects only, excluding normal wear and tear, loss/theft, and altered or modified products. Treat the headline 'lifetime' wording as marketing; the actual defect coverage is the 2-year limited policy.