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Osight
The Osight SE is an enclosed-emitter pistol red dot on the RMSc footprint, with a switchable 2 MOA dot and 32 MOA circle and a side-loading CR1620 battery.
Sig Sauer
The Sig Sauer Juliet3-Micro is a compact 3x22mm flip-to-side magnifier built to stretch a red dot's effective range, with a push-button Picatinny mount, adjustable co-witness risers, and an IPX-7 waterproof rating, all at a budget-friendly price.
Swampfox
The Swampfox Sentinel II is a lower-cost RMSc-footprint micro red dot for subcompact carry pistols, with a crisp 3 MOA dot, Shake 'N Wake auto on/off, and a claimed 50,000-hour battery life.
Sig Sauer Juliet4 4x24mm magnifier review: PowerCam quick-release flip-to-side mount, 65mm eye relief, IPX-8, 12.5 oz, $399.99.
The Sig Sauer Romeo2 is a modular pistol reflex sight that swaps between open, half-shrouded, and fully enclosed configurations, backed by MOTAC power management and a mil-spec durability pedigree.
Holosun
The Holosun SCS Carry is an enclosed-emitter micro red dot sight powered entirely by an internal rechargeable, solar-charged battery, built on the compact K footprint for subcompact and micro-compact carry pistols.
Primary Arms
The SLx 5X MicroPrism is the reach model in Primary Arms' micro-prism line: 5X magnification and an etched ACSS Aurora BDC reticle in an 8.5 oz body, with more published third-party abuse testing behind it than either of its shorter siblings.
Sig Sauer Romeo3 Max Pro review: an open pistol reflex sight in 3 or 8 MOA, CR1632, IPX-7. Relaunched as the Romeo3 Pro with the same part numbers.
Primary Arms GLx 2X prism scope review: glass-etched ACSS CQB-M5 reticle, AUTOLIVE motion-activated illumination, CR2032, 11.0 oz, $389.99 list.
Sig Sauer Romeo8T review: a closed-channel 1x38mm red dot with a 2 MOA dot and 65 MOA circle, CR123A, IPX-8 and a removable titanium shroud, $799.99.
Aimpoint
Aimpoint ACRO P-2 review: a fully enclosed pistol red dot with a 3.5 MOA reticle, CR2032 rated 50,000 hours, submersible to 35m (115 ft), $617.
The Aimpoint Duty RDS, the sight the FBI chose for its red dot program, lists at $514: a 2 MOA compact red dot with a 30,000-hour battery, full night vision compatibility, and an included one-piece torsion nut mount.
Aimpoint PRO review: a 2 MOA tube red dot with an included QRP2 mount, DL1/3N battery rated 30,000 hours, submersible to 45m, $512.
EOTech
EOTech G33 magnifier review: a 3x flip-to-side that holds a 7.3 degree field, pairs with EXPS and 500-series sights, and costs $679 at 11.2 oz.
Holosun 507K X2 review: a 1 oz subcompact micro red dot on the Holosun K footprint, 2 MOA dot with 32 MOA circle, CR1632 rated 50,000 hours, IP67, $348.22.
The Holosun HE509T-RD X2 is an enclosed-emitter, titanium-housed micro red dot sight with the Multi-Reticle System, Shake Awake, and Solar Failsafe, built to shrug off mud, lint, and hard duty use on a pistol.
Holosun AEMS review: an enclosed-emitter micro footprint red dot with a 2 MOA dot and 65 MOA circle, CR2032 rated 50,000 hours, IPX8, $470.58 at last list.
Holosun EPS Carry review: enclosed-emitter micro red dot for subcompact carry pistols, 2 MOA dot and 32 MOA circle, side-load CR1620 rated 50,000 hours, IPX8.
The Primary Arms SLx 1X MicroPrism is a compact 1x prism sight with an etched ACSS Cyclops Gen II reticle, a battery-independent, astigmatism-friendly answer to the LED red dot.
Trijicon
Trijicon MRO review: a 2 MOA tube red dot with a 25mm objective, forged 7075-T6 aluminum and a five-year battery, $668 with mount. Now discontinued.
Trijicon RMR HD review: a selectable 1 or 3.25 MOA dot with a 55 MOA ring, a higher-set window and a top-loading CR2032, on RMR plates for $1,019.
Holosun 507COMP review: window, footprint, battery, weight and price against the Trijicon RMR, SRO and 507C X2, plus what drop and zero tests found.
Swampfox Kraken review: a closed-emitter 3 MOA pistol dot with Shake 'N Wake, CR2032 and IPX7, now a final-sale legacy model; mixed torture-test results.
Vortex Optics
The Vortex Defender-CCW Enclosed Solar is a fully enclosed micro red dot sight built for concealed carry, pairing a hybrid battery and solar power system with a sealed 7075 aluminum housing on the Shield RMSc footprint.
The Sig Sauer Romeo-X Pro Enclosed is a fully sealed 1x24mm pistol reflex sight built on the Leupold DeltaPoint Pro footprint, with MOTAC motion-activated illumination and a side-loading CR1632 battery.
The EOTech 512.A65 is the budget half of the EOTech holographic decision: the same 68 MOA ring and 1 MOA dot as the EXPS3, powered by two AA batteries, without night-vision settings or a quick-detach lever.
The Vortex VMX-3T is a 3x flip-to-side magnifier built to stretch a tube-style red dot's practical range on an AR platform, backed by a nitrogen-purged aluminum housing and Vortex's lifetime VIP Warranty.
The Sig Sauer Romeo-X Pro is a duty-grade open-emitter pistol red dot sight on the DeltaPoint Pro footprint, with a 7075 aluminum housing, MOTAC motion activation, and a selectable 2 MOA dot / 32 MOA circle reticle.
Vortex Viper (VRD-6) review: how it compares with the discontinued Venom on height, battery access, dot size and footprint, plus the battery retention complaint.
Holosun HM3X 3x flip-to-side magnifier review: aluminum housing, IP67, adjustable diopter, spacer that co-witnesses absolute or lower 1/3, $235.28.
The Holosun ARO (ARO-CORE-GD2) is an enclosed micro rifle red dot with a 2 MOA gold reticle, Aimpoint T1/T2 footprint, Shake Awake, and a 50,000-hour battery, a budget optic aimed squarely at the SIG Romeo5 and the rest of the entry-level field.
The Holosun HS407K-X2 is a 1 oz open-emitter subcompact pistol red dot with a 6 MOA dot, 50,000-hour battery life, Shake Awake, and the K (RMSc-class) footprint, sized for slim single-stack carry guns.
The Trijicon RMRcc is a 3.25 MOA open-emitter reflex sight built specifically for slim concealed-carry pistols, trading the full-size RMR's RMR footprint for a thinner, lower-profile housing.
The Aimpoint CompM5 is a 2 MOA tube red dot built for AR/MSR and duty rifles: 5-year battery life on a single common AAA, the Aimpoint Micro footprint, and submersibility to 45 meters in a hard-anodized package.
The Sig Sauer Romeo1 Pro is an open-emitter pistol red dot sight built around a CNC aluminum housing, an optional stainless steel shroud, and MOTAC shake-awake power management, positioned as Sig's answer to the original Romeo1's durability complaints.
The Swampfox Blade 1x25 is a 1x prism sight with a chemically etched, illuminated BRC chevron reticle, an astigmatism-friendly, battery-independent aiming solution built around close-quarters AR-15 work.
The Primary Arms SLx 3X MicroPrism is a compact 3x prism sight with an etched, illuminated ACSS Raptor 5.56/.308 reticle: a battery-independent, astigmatism-friendly answer to the magnified red dot at a fraction of an ACOG's price.
Vortex AMG UH-1 Gen II review: what changed from Gen 1 (battery cap, charging port, night vision settings, window), the EBR-CQB reticle, 11.6 oz, $959.99.
The Primary Arms SLx MD-25 Gen II pairs a crisp 2 MOA dot and a 25mm tube with AutoLive motion-wake, a 50,000-hour battery, and a complete co-witness mounting kit: modern red dot features at a budget price.
Sig Sauer Romeo7 review: a full-size 1x30mm tube red dot with a 2 MOA reticle, an AA battery rated 62,500 hours (manufacturer claim), IPX-7, $199.99.
Trijicon RCR review: a 3.25 MOA enclosed pistol red dot on the RMR footprint, top-loading CR2032 rated 6+ years at setting 5, submersible to 20m, $1,019.
Holosun HS403B review: a lower-priced 2 MOA tube red dot with Shake Awake, a CR2032 rated 50,000 hours and IP67 sealing. Holosun now lists it as discontinued.
Holosun HE508T X2 review: titanium open pistol red dot, 2 MOA dot with 32 MOA circle, Shake Awake, solar failsafe, CR1632 rated 50,000 hours, $435.28.
Burris
Burris FastFire 3 review: no Shake Awake, so what its auto brightness and 8-hour time-out do instead, plus 3 or 8 MOA dots, a top-load CR1632 and $288.
The Aimpoint Micro T-2 is a compact 2 MOA red dot with night vision settings, ordered for the Finnish Defence Forces in 2018, aimed at military, law enforcement, and serious shooters.
Holosun HS510C review: open reflex sight with a 0.91 x 1.26 in window, 2 MOA dot and 65 MOA circle, solar failsafe, Shake Awake, CR2032, for rifles.
The Vortex Crossfire Red Dot Gen 2 pairs a 2 MOA dot with a rated 50,000 hours of battery life and Vortex's unconditional VIP lifetime warranty.
Vortex Venom review: how it compares with the Viper on battery access, dot size, height and footprint, and what its inactive status means for buyers.
Holosun 507C X2 review: what changed from the V2, red vs green, RMR footprint fit, 2 MOA dot with 32 MOA circle, solar failsafe, 1.5 oz.
Trijicon SRO review: a large-window pistol reflex sight in 1, 2.5 or 5 MOA, top-loading CR2032 rated 3 years, IPX8 to 10 feet, $822.
Vortex Strikefire II review: a 4 MOA red or green dot on a CR2 that Vortex rates at 360 hours. Vortex still lists this SF-RG-501 at $274.99; the inactive one is a different SKU.
Tacticon
Tacticon Predator V3 micro red dot review: 2 MOA, 11 brightness settings, CR2032 rated up to 50,000 hours, mounts included. Amazon lists it as unavailable.
TruGlo
The TruGlo Tritium Night Sights provide unmatched visibility in low light and complete darkness with Swiss tritium illumination, with no batteries required.
The Tacticon Firefly V2 is a versatile flashlight and laser sight combo with a magnetically rechargeable battery, 220-lumen flashlight, and six operating modes.
The Tacticon Predator V2 is an affordable reflex sight with 4 reticle patterns, red/green color options, and a parallax-free design from a combat veteran owned company.
Leupold
The Leupold DeltaPoint Pro is a serious contender in the MRDS class, adopted by the U.S. military and federal law enforcement for its exceptional clarity, motion-sensing technology, and rugged steel-sheathed construction.
Bushnell
The Bushnell TRS-25 is a budget-friendly red dot sight with solid features including 11 brightness settings, waterproof construction, and multi-coated lenses.
EOTech EXPS3 holographic sight review: the 1 MOA dot stays 1 MOA behind a magnifier, and $859 buys that precision at 11.2 oz and 600 hours of runtime.
Trijicon RMR Type 2 review: 3.25 MOA dot, forged 7075-T6 housing, IPX8 to 20m, $779, a dismount to swap batteries, and which Trijicon has a larger window.
Sightmark
Sightmark Ultra Shot M-Spec reflex sight review: 2 MOA dot with 65 MOA ring, CR123A rated 2,000 hours, IP68, night vision compatible, $299.97 at Sightmark.
The Sig Sauer Romeo5 is a bestselling compact red dot sight for rifles, carbines, and handguns. Sig has since replaced it with the Romeo5 Gen II.
Vortex Spitfire 3x prism review: a fixed 3x with an illuminated EBR-556B reticle, CR2032, 15.4 oz. Vortex replaced it with the HD Gen II, so you buy used.
Nikon
Nikon P-Tactical Spur review: a 3 MOA open reflex sight, CR1632 rated up to 15,000 hours, IPX7, $199. Discontinued, so this is a used market guide.
Vortex
The Vortex SPARC AR Gen II is a compact 1x tube red dot with a 2 MOA reticle, a 50,000-hour run on a single AAA battery, and a multi-height mount built for AR-15s, now being phased out of the Vortex lineup.
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