Steiner Optics MPS Micro Red Dot Sight- Fully Enclosed
- Handgun Scope
- 1.6 MOA
- RMSc
- 1
A compact, enclosed RMSc-footprint red dot built for carry pistols where sealed protection against debris matters more than magnification.
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How it ranks among the 24 handgun scopes we track
3.0★ across 2 Amazon ratings, Bayesian-smoothed toward the category average.
2 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 24 handgun scopes we track - how the scorecard works · full handgun scopes data report. Confidence: limited - limited rating history.Last refreshed Jun 22, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Weighing just 1.13 oz, the Steiner MPS-C is a fully enclosed micro red dot sight built on an RMSc footprint for slimline carry pistols, with a 1.6 MOA dot and 11 brightness levels. Despite the Handgun Scopes category label, this is a red dot sight, not a magnified scope.
Steiner sells this as an enclosed-emitter optic, meaning the laser sits behind a sealed window rather than an open reflector, which is meant to keep water, dust and dirt out of the light path. Shake-awake motion sensing and a claimed 13,000 hour battery life at medium brightness are aimed at carry use where the optic sits holstered for long stretches between range trips.
- 1.6 MOA dot, 11 brightness levels
- 1.13 oz, RMSc footprint
- Fully enclosed, sealed emitter
- Shake-awake, up to 13,000 hour battery life
Who it's for
Concealed carry and duty pistol owners who want a compact, enclosed red dot with an RMSc footprint. Not intended as a magnified sight for rifle-length engagement distances despite where the catalog files it.
What buyers say
From Amazon customer reviews.
The review on file describes an easy mount and effortless sight-in, no fisheye distortion in the picture, and no shift after roughly 1,000 rounds.
Strengths and trade-offs
Drawn from this product's published specifications.
- Enclosed emitter resists water, dust and dirt in the light path
- Light at 1.13 oz for all-day carry
- RMSc footprint fits common slimline pistol cuts
- Shake-awake with long claimed battery life
- No magnification, so it will not suit longer defensive or duty distances beyond typical pistol range
- Only a couple of ratings on file so far
Performance notes
The enclosed emitter design routes the laser behind a sealed window, which is meant to keep the dot visible even if the front lens picks up rain, sweat or dust that would blind an open reflex sight. Shake-awake activates the optic on movement and shuts it off automatically after 13 hours of inactivity to preserve the battery.
Specifications
| Brand | Steiner |
|---|---|
| Model | 8700000039 |
| Dimensions & fit | |
| Item Weight | 1.1 ounces |
| Item Display Weight | 1.1 ounces |
| Item Dimensions L x W x H | 1.5 × 1.3 × 1.1 inches |
| Construction & materials | |
| Material Type | hard-anodized Class III aluminum |
| Color | Black |
| Compatibility & installation | |
| Mounting Type | RMSc |
| Compatible Devices | Handgun |
| Included components | |
| Unit Count | 1 |
| Included Components | Red Dot Sight |
| Warranty & support | |
| Warranty Description | Lifetime |
| Other details | |
| Reticle Type | 1.6 MOA |
| Sport Type | Airsoft, Hunting, Paintball, Shooting |
| Field Of View | 1.6 Arc Minutes |
| Item Type Name | Handgun Sight |
| Product Style | Red Dot Sight |
How it compares
This product against the closest alternatives we track in handgun scopes.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Steiner Optics MPS Micro Red Dot Sight- Fully EnclosedThis product | 3.0 / 5 | 2 | 2.7 / 5 |
| Holosun EPS Full Size Series 2MOA/6MOA or 2MOA with 32MOA Circle dot OptionsBrand | 4.7 / 5 | 502 | 4.4 / 5 |
| Trijicon RMR Type 2 6.5 MOA Adjustable LED Red Dot SightTrijicon | 4.4 / 5 | 458 | 4.2 / 5 |
| NcStar 2.5X30 Pistol Scope/Blue Lens/RingNcSTAR | 4.4 / 5 | 397 | 4.2 / 5 |
| UTG 2-7X32 1" Handgun ScopeUTG | 4.3 / 5 | 322 | 4.1 / 5 |
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Questions about the Steiner 8700000039
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
What footprint does the Steiner MPS-C use?
It uses the RMSc footprint, designed for slimline carry pistols with that cut.
Is the Steiner MPS-C an enclosed or open emitter red dot?
It is fully enclosed, with the laser sealed behind a window to keep out water, dust and dirt.
How long does the battery last?
Steiner states up to 13,000 hours at medium brightness, with a 13-hour auto-off timer when the optic is not moved.