Guides
Red Dot Battery Types Explained: CR2032 vs CR1632 vs CR123A vs AAA
A plain-English guide to the batteries that power red dot sights. What CR2032, CR1632, CR123A, and AAA cells are, which optics use them, and why the cell your sight takes drives its runtime and how easily you can swap it in the field.
Read Guide →Red Dot Housing Materials: 6061-T6 vs 7075-T6 Aluminum, Titanium, and Polymer
What a red dot sight's housing is actually made of, and when it matters. We break down 6061-T6 vs 7075-T6 aluminum, titanium, and polymer with real strength figures and the optics that use them.
Read Guide →Red Dot Optic Coatings and Finishes Explained: Anodizing, Cerakote, MAO, and PVD/DLC
What the finish on your red dot housing actually is, and why it matters. Plain-English breakdown of Type III hardcoat anodizing, Cerakote, micro-arc oxidation (MAO/PEO), and PVD/DLC coatings, with a side-by-side comparison.
Read Guide →Waterproof IP Ratings Explained: IPX7, IPX8, IP67 and IP68 for Red Dot Sights
What the IP code on a red dot sight actually means. We decode the two digits behind IPX7, IPX8, IP67 and IP68 using the IEC 60529 standard, and explain why an IPX8 depth rating is set by the maker, not the standard.
Read Guide →Best Budget Red Dot Sight (Under $200) - Tested & Ranked
Our top budget red dot sights under $200, ranked and reviewed, covering durability, battery life, reticle, and mounting so you get the most optic for your money.
Read Guide →Best Enclosed Emitter Pistol Red Dot - Reviews & Buyer's Guide
Our top picks for enclosed-emitter pistol red dot sights, ranked for carry reliability, with a plain explainer on why a sealed emitter beats an open reflex sight for everyday duty and concealed carry.
Read Guide →Best Holographic Sight - Top Picks Compared
Our picks for the best holographic sight, compared head to head: the EOTech EXPS3 benchmark versus the Vortex AMG UH-1 Gen II, with a plain-English explainer on how holographic sights differ from LED red dots.
Read Guide →The Best Red Dot for AR-15 (Ranked) - Plus a Shooter's Buyer's Guide
Our top red dot and reflex sights for the AR-15, tested and ranked. Covers durability, reticle choice, co-witness mounting, battery life, and how much to spend.
Read Guide →Best Red Dot for Astigmatism - Sights That Don't Starburst
The best optics for shooters with astigmatism: etched-prism reticles, green dots, and enclosed designs that fix the smeared, starbursted dot, ranked and explained.
Read Guide →Co-Witness Explained: Absolute vs Lower 1/3
What co-witnessing actually means on an AR-15, and how absolute and lower 1/3 mount heights change where your backup irons sit inside the red dot window.
Read Guide →Holosun 508T vs Trijicon SRO - Review
A side-by-side comparison of the Holosun HE508T and Trijicon SRO pistol red dot sights covering window size, durability, price, reticle, battery, and the best use case for each.
Read Guide →How to Zero a Red Dot Sight (Step-by-Step + Best Zero Distance)
A plain-English walkthrough for zeroing a red dot sight: bore sight first, confirm with live fire, do the click math right, and pick the zero distance that fits your gun.
Read Guide →Open vs Enclosed Emitter Red Dots - Which for Carry?
Open-emitter reflex sights are lighter, cheaper, and slimmer, but the exposed LED can be blocked by lint, sweat, rain, or snow. Here is how enclosed-emitter optics seal that light path, what the trade-offs cost you, and which design fits your use case.
Read Guide →Red Dot Footprints Explained - RMR, RMSc, Docter, ACRO & Holosun K
A footprint is the screw-and-recoil-lug pattern that decides which optics actually fit your slide. Here is a plain-English map of the major ones and how to find your cut.
Read Guide →What Is MOA? Choosing Red Dot Size (2 vs 3 vs 6 MOA)
MOA is the spec that decides how big your aiming dot looks downrange. Here is what it means and how to pick 2, 3.25, or 6 MOA for your pistol or rifle.
Read Guide →Red Dot vs Holographic Sight - Which Should You Buy?
Red dot vs holographic sight explained: how each one works, how their reticles, battery life, size, and price compare, and which optic is the right call for your pistol or carbine.
Read Guide →Trijicon RMR vs Holosun 507C - Review
A side-by-side comparison of the Trijicon RMR Type 2 and Holosun 507C X2 red dot sights covering durability, price, footprint, reticle, battery, and use-case verdict.
Read Guide →The Best Pistol Red Dot Sights (Updated) - Plus Shooters Buyers Guide
Our top picks for pistol-mounted red dot sights, tested and ranked. Covers durability, reticle options, battery life, mounting, and more.
Read Guide →Best Holosun Red Dot For a Pistol
The best Holosun red dot sights for pistols ranked in four categories: overall, closed emitter, concealed carry, and budget.
Read Guide →How to Mount a Red Dot Sight on an Optics Ready Pistol
Step-by-step tutorial on mounting a micro red dot sight on an optics-ready pistol, covering tools, accessories, and installation steps.
Read Guide →Vortex Venom vs Viper - Review
A side-by-side comparison of the Vortex Venom and Vortex Viper red dot sights covering size, reticle, operation, batteries, and mounting.
Read Guide →