The Trijicon RMR HD is a duty-grade red dot optic engineered for law enforcement and military applications. Building on the proven RMR Adjustable LED platform, it features a patented forged aluminum housing and enhanced electronic system for ultra-reliability in demanding conditions.

A forward-looking light sensor automatically adjusts reticle brightness based on ambient lighting at the target. The reticle offers a 55 MOA segmented circle with 1 MOA center dot, with options to switch to a crisp single dot. Multiple brightness settings include a super bright mode for daylight and dedicated night vision settings.

The RMR HD boasts a larger viewing window and expanded field of view compared to the standard RMR, with larger tactile buttons and adjusters providing improved audible and tactile feedback. It accepts a top-loading CR2032 battery and maintains the same footprint as the original RMR for compatibility with existing optics-ready holsters.