Independent field journal · Practice, evidence, judgmentIssue No. 01 / Summer 2026
KGKNOWN GROUNDClarity and capability in a contested world
Newsletter
Product record · Specifications checked July 23, 2026

RMR HD

Duty-focused reflex optic.

Editorial status

current

Research record; not firsthand tested.

Key facts

optic

Weight: 1.69 oz / 48 g with battery
Dimensions: 2.15 × 1.27 × 1.19 in
Compatibility: Trijicon RMR footprint

Typical price

Not listed

Prices may change.

No merchant links are currently listed.

Description

Duty-focused reflex optic.

Specifications

Documented specifications for RMR HD
DesignOpen emitter
Window0.89 × 0.68 in / 22.6 × 17.2 mm
BatteryTop-loading CR2032
Housing7075-T6 forged aluminum
Reticle1 or 3.25 MOA dot with selectable 55 MOA circle
Adjustment1 MOA per click
Brightness9 settings, including 3 night-vision and 1 super-bright
Battery lifeMore than 3 years at setting 5 in dot-only mode
Magnification
Adjustment range135 MOA total travel
Water resistance66 ft / 20 m
Operating temperature-40°F to 140°F / -40°C to 60°C

Sources and verification

Reviewed pistol mounting paths

Published compatibility records for RMR HD
Pistol configurationResultMounting detailsVerified
Glock G19 Gen6 Optic Ready
G19 Gen6 Optic Ready · Glock Gen6 Optic Ready
plate requiredGlock 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 requiredStaccato 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 requiredStaccato 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 requiredGlock 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 requiredGlock 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 requiredStaccato 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 requiredGlock 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 mountNo 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 requiredStaccato 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 requiredStaccato 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 requiredGlock Glock Gen6 02 Plate (oem) — OEM screws.Checked July 15, 2026
Not personally tested
Glock G47 MOS
G47 MOS · Glock Gen5 MOS
plate requiredGlock 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 requiredStaccato 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 requiredStaccato 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 requiredStaccato 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 requiredStaccato 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 requiredGlock 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 requiredStaccato 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 mountNo plate required — Pin set 1; screw kit 1A.Checked July 15, 2026
Not personally tested

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