Trijicon Optics Guide: RMR, SRO, RCR & RMR HD Explained

Trijicon optics are trusted for hard-use reliability. This guide covers the RMR, RMR HD, SRO and RCR so you can choose the right one. Browse the full Trijicon range.

RMR Type 2

The RMR (Ruggedized Miniature Reflex) Type 2 is the benchmark pistol red dot, with a patented housing shape that protects the lens under recoil. Its RMR footprint is the most widely supported pattern — see footprints explained.

RMR HD

The RMR HD updates the platform with a larger window, top-loading battery and a selectable reticle (a 1 MOA dot or a 55 MOA circle-dot), improving visibility and ease of use.

SRO

The SRO (Specialized Reflex Optic) uses a tall, round, oversized window for an exceptionally clear sight picture, making it a favourite for competition and target shooting. See our competition optics.

RCR

The RCR is Trijicon's enclosed-emitter red dot, sealing the optic against debris for maximum reliability — see open reflex vs enclosed and browse enclosed optics.

Mounts

Trijicon offers RMR-footprint Picatinny mounts and pistol plates — see mounts and our guide to the best pistol red dot sights.