Hunting · Fieldcraft · Preparedness · IdeasIndependent field journal / 2026
KGKNOWN GROUNDClarity and capability in a contested worldBird dogs. Wild birds. Public land.
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Product record · Specifications checked July 23, 2026

RMSx

Full-size reflex optic.

Research status · current

Source-backed record

Research record; not firsthand tested.
10 documented specifications, source references, and verification dates are present. Mounting paths are reviewed separately.

Key facts

optic

Weight: 1.0 oz / 28.6 g excluding battery
Dimensions: 1.61 × 1.34 × 1.07 in / 40.8 × 34 × 27.3 mm
Compatibility: Shield RMS / RMSc footprint

Typical price

Not listed

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Description

Full-size reflex optic.

Specifications

Documented specifications for RMSx
LensGlass
DesignOpen emitter
BatteryUnderside CR2032
HousingAluminum
Reticle4 MOA, 8 MOA, or 65 MOA ring with 2 MOA dot
BrightnessAutomatic; lowest level is night-vision compatible
Eye reliefUnlimited
Battery life20,000-hour average in daylight
Magnification
Water resistanceIP67: 3 ft / 1 m for 30 minutes

Sources and verification

Reviewed pistol mounting paths

Published compatibility records for RMSx
Pistol configurationResultMounting detailsVerified
Springfield Armory Echelon 4.5
Echelon 4.5 · Springfield Echelon VIS
direct mountNo plate required — Pin set 3; OEM screws.Checked July 15, 2026
Not personally tested
Walther PDP Full Size — 2.0 Cut
PDP Full Size — 2.0 Cut · Walther PDP 2.0 Optic Cut
plate requiredWalther Walther PDP 2.0 DPP / Shield Plate (oem) — Use screws specified for the exact optic.Checked July 15, 2026
Not personally tested
Walther PDP Compact — 2.0 Cut
PDP Compact — 2.0 Cut · Walther PDP 2.0 Optic Cut
plate requiredWalther Walther PDP 2.0 DPP / Shield Plate (oem) — Use screws specified for the exact optic.Checked July 15, 2026
Not personally tested
Springfield Armory Echelon 4.0C
Echelon 4.0C · Springfield Echelon VIS
direct mountNo plate required — Pin set 3; OEM screws.Checked July 15, 2026
Not personally tested

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