Trijicon RMR

RMR Type 1 vs. Type 2: What Changed

The RMR Type 2 is the current production model and the right choice for all buyers. The Type 2 introduced an upgraded LED emitter, improved battery life (approximately 4 years at setting 4 of 8), and an auto-brightness mode that automatically adjusts dot intensity to ambient lighting conditions — critical for moving from a dark indoor environment to bright outdoor light without manual adjustment. The Type 1 is no longer in production; if encountered used, it's a functional optic but lacks the Type 2's electronics improvements. All new RMR purchases at Impact Guns are the Type 2 configuration.

RMR Dot Size: 3.25 MOA vs. 6.5 MOA

The RMR is available in 3.25 MOA and 6.5 MOA LED dot sizes. The 3.25 MOA dot is smaller and subtends less of the target at distance — the right choice for precision work where the dot covering the target matters. For a duty pistol or home defense gun where shots are primarily inside 25 yards, either size works but many experienced shooters prefer the 6.5 MOA for faster acquisition under stress. The 6.5 MOA dot is impossible to miss when looking through the sight — at defensive distances the larger dot snaps to the target faster than the 3.25 MOA for most shooters. Competition shooters and those who shoot at longer distances tend to prefer 3.25 MOA; duty and defensive shooters often prefer 6.5 MOA. If unsure, 3.25 MOA is the more versatile starting choice.

Dual-Illuminated RMR: Battery-Free Operation

The dual-illuminated RMR uses fiber optics to collect ambient light and tritium for night use — no battery required. The dot brightness adjusts automatically to lighting conditions via the fiber optic, and tritium provides a visible dot in complete darkness. The dual-illuminated RMR is preferred by operators in environments where battery management is a concern and by users who want absolute simplicity. The tradeoff: the dual-illuminated version does not have an LED dot, so the dot appearance differs slightly from the LED versions — it's a triangle rather than a dot. The fiber/tritium combination provides exceptional reliability but the tritium fades over approximately 12 years and requires replacement. For most civilian users, the LED Type 2 is the more practical choice; for military and law enforcement users prioritizing battery independence, the dual-illuminated is worth considering.

RMR vs. Holosun: Making the Choice

The most common comparison is between the Trijicon RMR and Holosun's 507K or EPS Carry. Holosun offers more features (solar backup, larger window, circle-dot reticle) at a lower price point. The RMR's advantages are its military qualification testing, proven track record in the most demanding operational environments, and its status as the standard by which pistol optics compatibility is measured — virtually every optics-cut pistol uses the RMR footprint as the primary standard. For civilian carry and duty use, a well-maintained Holosun is a legitimate alternative. For military and law enforcement applications where equipment has been validated to specific standards, the RMR Type 2's qualifications are difficult to replicate. The RMR is not the right choice because it's the most feature-rich — it's the right choice because its reliability has been proven under conditions no civilian optic faces.

RMR Footprint and Pistol Compatibility

The RMR uses the standard RMR footprint — the most widely supported pistol optics cut in the industry. Virtually every optics-ready pistol is either cut directly for the RMR or includes adapter plates. This includes the Glock MOS series (with included adapter), Sig P320 X-Series, Springfield Echelon, FN 509 Tactical, and hundreds of other models. The RMR footprint's dominance means that when you buy an RMR-cut pistol, you have the widest possible choice of compatible optics — not just the RMR itself, but any optic using the same footprint.

Mounting and Zero Procedure

The RMR mounts directly to RMR-cut slides using the included screws — apply threadlocker to prevent loosening under recoil, and torque to Trijicon's specified value. After mounting, zero at 15–25 yards for a typical defensive pistol application. The RMR's adjustment dials use coin-slot screws: one click equals approximately 1 MOA of adjustment. Keep track of total adjustment from center to verify you haven't exhausted the adjustment range — the RMR has limited total adjustment travel. Co-witness with iron sights is recommended; suppressor-height iron sights allow full co-witness through the RMR window on most pistols.

Shop Trijicon RMR at Impact Guns

Browse the Trijicon RMR Type 2 at Impact Guns. For other Trijicon optics, see our Trijicon brand page and the Trijicon ACOG. For competing pistol optics, see the Holosun 507K and Holosun EPS Carry. For all handgun optics, see our handgun optics page.