Buying Guides
Holosun EPS vs EPS Carry vs EPS CORE: Which Enclosed Pistol Sight?
Holosun's EPS, EPS Carry and EPS CORE compared — sizes, footprints, reticles and colours — so you can pick the right ...
Field Notes
News
Buying guides, comparisons and how-tos from the Xtreme Tactical team.
Buying Guides
Holosun Model Numbers Explained: HS, HE, C, K, T & X2 Decoder
What Holosun's model numbers actually mean — HS vs HE, 407 vs 507 vs 510 vs 512, and the C, K, T, X2, CM and GM suffi...
Guide
Red Dot Sight Battery Chart: Which Battery Does Your Optic Use?
A red dot sight battery chart — which battery (CR2032, CR1632, CR1620, AAA, CR123) popular Holosun, Trijicon and SIG ...
Buying Guide
Pistol Red Dot Footprint Compatibility Chart (2026): Which Optic Fits Your Pistol?
A clear, up-to-date pistol red dot footprint compatibility chart — RMR, RMSc/K, 509T, RCR and RMR HD — mapping which ...
Budget
Best Budget Red Dot Sights in 2026: Top Value Picks
The best budget red dot sights in 2026 — reliable, feature-packed value picks from Holosun and SIG for rifle and pist...
AR-15 Optics
Choosing a Red Dot Magnifier: 3x vs 5x vs 6x
How to choose a flip-to-side red dot magnifier — 3x vs 5x vs 6x, eye box, mount height and the best options to extend...
Buying Guide
Best Optics for Concealed Carry in 2026
How to choose the best optic for concealed carry in 2026 — footprint, open vs enclosed, dot size and our top UK-stock...
Buying Guide
Holosun Optics Buyer's Guide: Which Holosun Is Right for You?
Confused by Holosun model numbers? This buyer's guide decodes the 507C, 507K, EPS, AEMS and more, so you can choose t...
Buying Guide
Enclosed vs Open Red Dot Sights: Which Should You Choose?
Open or enclosed emitter? A clear comparison of the two red dot sight types — reliability, weight and cost — to help ...
Buying Guide
Green vs Red Dot Sights: Which Reticle Colour Is Best?
Green vs red dot sights — which reticle colour is brighter, easier to see and better value? A clear comparison to hel...
Buying Guide
Best Pistol Red Dot Sights in 2026: Carry, Duty & Competition
The best pistol red dot sights in 2026, chosen by use case — carry, duty and competition — with UK-stocked Holosun, T...
Buying Guide
RMR vs RMSc Footprint: Which Pistol Red Dot Sight Fits Your Gun?
RMR vs RMSc footprint explained in plain English — how to tell which pistol red dot sight will actually fit your slid...