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MPS
The Steiner MPS is a 1× enclosed-emitter pistol sight built around a 3.3 MOA red dot and a 20 × 16 mm viewing window. Steiner documents eight manual brightness settings (six daylight and two night-vision), a top-accessible CR1632 battery rated for 13,000 hours at medium brightness, a 2.05 oz weight, and an ACRO-platform mounting interface. This is a manufacturer-sourced research record; Known Ground has not marked it as personally tested.
Source-backed record
Research record; not firsthand tested.
12 documented specifications, source references, and verification dates are present. Mounting paths are reviewed separately.
optic
Weight: 2.05 oz / 58 g
Dimensions: 1.77 × 1.24 × 1.20 in / 45 × 31.5 × 30.5 mm
Compatibility: Aimpoint ACRO interface
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Description
The Steiner MPS is a 1× enclosed-emitter pistol sight built around a 3.3 MOA red dot and a 20 × 16 mm viewing window. Steiner documents eight manual brightness settings (six daylight and two night-vision), a top-accessible CR1632 battery rated for 13,000 hours at medium brightness, a 2.05 oz weight, and an ACRO-platform mounting interface. This is a manufacturer-sourced research record; Known Ground has not marked it as personally tested.
Specifications
| Design | Enclosed emitter |
|---|---|
| Window | 0.79 × 0.63 in / 20 × 16 mm |
| Battery | CR1632 |
| Reticle | 3.3 MOA red dot |
| Adjustment | 1 MOA per click |
| Brightness | 6 daylight and 2 night-vision settings |
| Battery life | 13,000 hours at medium setting |
| Magnification | 1× |
| Adjustment range | 90 MOA elevation and windage |
| Parallax setting | 25 m |
| Water resistance | Submersible to 33 ft / 10 m |
| Operating temperature | -40°F to 140°F / -40°C to 60°C |
Sources and verification
- Manufacturer product page
- Specification source — checked August 1, 2026
- Mounting-footprint source — checked August 1, 2026
Reviewed pistol mounting paths
| Pistol configuration | Result | Mounting details | Verified |
|---|---|---|---|
| Springfield Armory Echelon 4.5 Echelon 4.5 · Springfield Echelon VIS | plate required | Springfield Armory Springfield VIS ACRO Plate (oem) — Follow VIS ACRO plate instructions. | Checked July 15, 2026 Not personally tested |
| Springfield Armory Echelon 4.0C Echelon 4.0C · Springfield Echelon VIS | plate required | Springfield Armory Springfield VIS ACRO Plate (oem) — Follow VIS ACRO plate instructions. | Checked July 15, 2026 Not personally tested |