Duty Arms IndexAimpoint COA vs Trijicon RMR (Type 2)
Data coverage: Adoption is based on 105 agencies in the Duty Arms Index with a current, sourced pistol optic entry; SWAT / tactical-unit entries are not counted. Counts include only current entries with a public source; agencies not yet in the index, or without a sourced entry for this item, are not counted, so treat shares as a picture of the Duty Arms Index, not of every agency. These counts cover US agencies only; agencies outside the US are not included here (see agencies by country). Data last updated Oct 11, 2026.
Aimpoint COA
Aimpoint COA 3.5 MOA (A-CUT interface)
- Agencies (current entry)
- 32
- Share of agencies with a sourced pistol optic
- 30.5%
Trijicon RMR (Type 2)
Trijicon RMR Type 2 RM06 (3.25 MOA)
- Agencies (current entry)
- 11
- Share of agencies with a sourced pistol optic
- 10.5%
Trijicon RMR shown on an S&W M&P. Photo: Tony Webster, CC BY 2.0, via Wikimedia Commons. Model photo, not the agency's own firearm.
Maker specs, side by side
Print evaluation memoValues are copied exactly as each maker publishes them, with a numbered source for each; we don't test, convert units or rate anything. “Not published” means the maker's current spec page or manual doesn't list it. Columns are in order of agency count in the index, not preference. Shaded rows differ.
| Version shown | Aimpoint COAAimpoint COA 3.5 MOA (A-CUT interface)12 of 17 fields published | Trijicon RMR (Type 2)Trijicon RMR Type 2 RM06 (3.25 MOA)10 of 17 fields published |
|---|---|---|
| Mounting | ||
| Mounting footprintThe maker's footprint name (RMR, ACRO, RMSc, DeltaPoint Pro, K...). It must match the slide cut or adapter plate. | A-CUT Interface[1] | RMR[2] |
| EmitterOpen (exposed emitter) or enclosed, as the maker describes it. | Not published | Not published |
| Mounting notes (maker's) | Integrated A-CUT™ interface[1] | Not published |
| Optical | ||
| Reticle / dot size | 3.5 MOA[1] | 3.25 MOA Dot[2] |
| Reticle colour | Red[1] | Red[2] |
| Window size | 15 × 15 mm[1] | Not published |
| Brightness settings | 4 night vision compatible settings and 8 daylight settings[1] | Not published |
| Night-vision settings | Not published | Not published |
| Power | ||
| Battery | CR2032, 3V, Lithium[1] | 1 CR2032 Lithium Battery[2] |
| Battery life (maker's stated)As stated, usually at a mid brightness setting; not comparable across makers unless the setting matches. | 50,000 h at daylight setting 7 (15,000 Lux, room temperature)[1] | Over 4 years of continuous use (when used at 70ºF (21ºC)) at setting 4 of 8.[2] |
| Battery access | Not published | Not published |
| Auto-on / auto-brightness | Not published | Not published |
| Physical | ||
| Dimensions | 45 x 28 x 30 mm / 1.8 x 1.1 x 1.2 in[1] | 1.8 in x 1.1 in x 1 in[2] |
| Weight | 48 g / 1.7 oz[1] | 1.2 oz. (34.02g)[2] |
| Housing material | High strength aluminum[1] | Forged Aluminum[2] |
| Water rating (maker's stated) | 25 m / 80 ft[1] | waterproof to 20 meters (66 ft.)[2] |
| Price | ||
| Maker list price | Not published | $779.00[2] |
| Maker notes | — | Footprint: the maker states the RMR Type 2 has identical physical dimensions and mounting footprint to the original RMR Type 1. |
Specs checked against the maker's page on Oct 11, 2026. Makers revise pages; confirm with the manufacturer before purchase. Spotted an error? Send a correction with a source. How we compile specs.
Agency adoption and pistol pairings
Aimpoint COA
32 agencies with a current, sourced entry (30.5% of 105 agencies with a sourced pistol optic).
Mounted on (pistol, agencies): Glock G45 (6), Glock G45 Gen6 (6), Glock G43X MOS (5), Glock G45 Gen5 MOS (5).
Trijicon RMR (Type 2)
11 agencies with a current, sourced entry (10.5% of 105 agencies with a sourced pistol optic).
Mounted on (pistol, agencies): Glock G17 MOS (2), Glock G17 (1), Glock G17 Gen5 (1), Glock G19 Gen5 MOS (1).
Counts are agencies (not officers or units) with a current entry backed by a public source; SWAT / tactical-unit entries are not counted. 105 agencies have any sourced pistol optic in the index.
Notices
Recalls, safety statements and agency actions, dated and linked to the original document. Listed the same way for every maker; facts only, no commentary.
Aimpoint COA
No notices on file.
Trijicon RMR (Type 2)
No notices on file.
We add notices only with a primary document.
Sources
- [1] COA 3.5 MOA - Red dot reflex sight with A-CUT interface for pistols · Aimpoint · accessed Oct 11, 2026 · archive
- [2] Trijicon RMR Type 2 Red Dot Sight (RM06) · Trijicon · accessed Oct 11, 2026 · archive