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RMR HD
The Trijicon RMR HD is a 1× open-emitter reflex sight with a selectable 55 MOA circle and center dot. For the RMHD2 3.25 MOA configuration, Trijicon documents nine brightness settings including three night-vision settings and one super-bright setting, a top-loading CR2032 battery rated for more than three years in dot-only mode at setting 5, 1 MOA adjustments, a 7075-T6 aluminum housing, and the same mounting footprint as the RMR. Known Ground has firsthand experience with this optic; the specifications remain manufacturer-sourced and separately labeled.
Source-backed record
firsthand: 18 months
12 documented specifications, source references, and verification dates are present. Mounting paths are reviewed separately.
optic
Weight: 1.69 oz / 48 g with battery
Dimensions: 2.15 × 1.27 × 1.19 in
Compatibility: Trijicon RMR footprint
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Description
The Trijicon RMR HD is a 1× open-emitter reflex sight with a selectable 55 MOA circle and center dot. For the RMHD2 3.25 MOA configuration, Trijicon documents nine brightness settings including three night-vision settings and one super-bright setting, a top-loading CR2032 battery rated for more than three years in dot-only mode at setting 5, 1 MOA adjustments, a 7075-T6 aluminum housing, and the same mounting footprint as the RMR. Known Ground has firsthand experience with this optic; the specifications remain manufacturer-sourced and separately labeled.
Specifications
| Design | Open emitter |
|---|---|
| Window | 0.89 × 0.68 in / 22.6 × 17.2 mm |
| Battery | Top-loading CR2032 |
| Housing | 7075-T6 forged aluminum |
| Reticle | 1 or 3.25 MOA dot with selectable 55 MOA circle |
| Adjustment | 1 MOA per click |
| Brightness | 9 settings, including 3 night-vision and 1 super-bright |
| Battery life | More than 3 years at setting 5 in dot-only mode |
| Magnification | 1× |
| Adjustment range | 135 MOA total travel |
| Water resistance | 66 ft / 20 m |
| Operating temperature | -40°F to 140°F / -40°C to 60°C |
Sources and verification
- Manufacturer product page
- Specification source — checked August 5, 2026
- Mounting-footprint source — checked August 5, 2026
Reviewed pistol mounting paths
| Pistol configuration | Result | Mounting details | Verified |
|---|---|---|---|
| Glock G19 Gen6 Optic Ready G19 Gen6 Optic Ready · Glock Gen6 Optic Ready | plate required | Glock Glock Gen6 02 Plate (oem) — OEM screws. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato HD P4.5 HOST Staccato HD P4.5 HOST · Staccato HD HOST | plate required | Staccato Staccato HD HOST RMR HD / SRO Kit (oem) — Use factory optic hardware as directed by Staccato. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato HD P4 HOST Staccato HD P4 HOST · Staccato HD HOST | plate required | Staccato Staccato HD HOST RMR HD / SRO Kit (oem) — Use factory optic hardware as directed by Staccato. | Checked July 15, 2026 Not personally tested |
| Glock G17 Gen5 MOS G17 Gen5 MOS · Glock Gen5 MOS | plate required | Glock Glock MOS 02 Plate (oem) — Use the optic and plate manufacturer-specified screws. | Checked July 15, 2026 Not personally tested |
| Glock G19 Gen5 MOS G19 Gen5 MOS · Glock Gen5 MOS | plate required | Glock Glock MOS 02 Plate (oem) — Use the optic and plate manufacturer-specified screws. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato C2 Optic Ready Staccato C2 Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO RMR / RMR HD / SRO Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Glock G45 Gen6 Optic Ready G45 Gen6 Optic Ready · Glock Gen6 Optic Ready | plate required | Glock Glock Gen6 02 Plate (oem) — OEM screws. | Checked July 15, 2026 Not personally tested |
| Springfield Armory Echelon 4.5 Echelon 4.5 · Springfield Echelon VIS | direct mount | No plate required — Pin set 1; screw kit 1A. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato HD C3.6 HOST Staccato HD C3.6 HOST · Staccato HD HOST | plate required | Staccato Staccato HD HOST RMR HD / SRO Kit (oem) — Use factory optic hardware as directed by Staccato. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato C Optic Ready Staccato C Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO RMR / RMR HD / SRO Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Glock G17 Gen6 Optic Ready G17 Gen6 Optic Ready · Glock Gen6 Optic Ready | plate required | Glock Glock Gen6 02 Plate (oem) — OEM screws. | Checked July 15, 2026 Not personally tested |
| Glock G47 MOS G47 MOS · Glock Gen5 MOS | plate required | Glock Glock MOS 02 Plate (oem) — Use the optic and plate manufacturer-specified screws. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato XL Optic Ready Staccato XL Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO RMR / RMR HD / SRO Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato XC Optic Ready Staccato XC Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO RMR / RMR HD / SRO Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato P DPO Staccato P DPO · Staccato DPO | plate required | Staccato Staccato DPO RMR / RMR HD / SRO Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato HD C4X HOST Staccato HD C4X HOST · Staccato HD HOST | plate required | Staccato Staccato HD HOST RMR HD / SRO Kit (oem) — Use factory optic hardware as directed by Staccato. | Checked July 15, 2026 Not personally tested |
| Glock G45 MOS G45 MOS · Glock Gen5 MOS | plate required | Glock Glock MOS 02 Plate (oem) — Use the optic and plate manufacturer-specified screws. | Checked July 15, 2026 Not personally tested |
| Staccato Staccato CS Optic Ready Staccato CS Optic Ready (DPO) · Staccato DPO | plate required | Staccato Staccato DPO RMR / RMR HD / SRO Kit (oem) — Use the DPO kit instructions and supplied hardware. | Checked July 15, 2026 Not personally tested |
| Springfield Armory Echelon 4.0C Echelon 4.0C · Springfield Echelon VIS | direct mount | No plate required — Pin set 1; screw kit 1A. | Checked July 15, 2026 Not personally tested |