# Trijicon RMR Type 2 vs Primary Arms SLx MD-25: specs and price compared

A sourced, side-by-side comparison of the Trijicon RMR Type 2 (Trijicon) and Primary Arms SLx MD-25 (Primary Arms) among red dot sights. Primary Arms SLx MD-25 is the cheaper of the two at $159.99.

## Side by side

| Spec | Trijicon RMR Type 2 | Primary Arms SLx MD-25 |
| --- | --- | --- |
| US price | $699 | $159.99 |
| Brand | Trijicon | Primary Arms |
| Sight type | open-reflex | tube |
| Dot size moa | 3.25 | 2 |
| Reticle type | dot | dot |
| Objective window (mm) | — | 25 |
| Battery type | CR2032 | CR2032 |
| Battery life hrs | 35000 | 50000 |
| Brightness settings | 8 | 11 |
| Mount footprint | Trijicon-RMR | Aimpoint-Micro |
| Weight grams | 34.02 | — |
| Length (mm) | 45.72 | — |
| Night vision compatible | Yes | Yes |
| Motion activation | No | Yes |

## Key differences

- Sight type: Trijicon RMR Type 2 open-reflex vs Primary Arms SLx MD-25 tube
- Dot size moa: Trijicon RMR Type 2 3.25 vs Primary Arms SLx MD-25 2
- Battery life hrs: Trijicon RMR Type 2 35000 vs Primary Arms SLx MD-25 50000
- Brightness settings: Trijicon RMR Type 2 8 vs Primary Arms SLx MD-25 11
- Mount footprint: Trijicon RMR Type 2 Trijicon-RMR vs Primary Arms SLx MD-25 Aimpoint-Micro
- Motion activation: Trijicon RMR Type 2 No vs Primary Arms SLx MD-25 Yes

## Sources

- Trijicon RMR Type 2: https://web.archive.org/web/20201205180437/https://www.trijicon.com/products/details/rm06-c-700672 (web.archive.org, verified 2026-07-11)
- Primary Arms SLx MD-25: https://www.primaryarms.com/primary-arms-slx-md25-rotary-knob-25mm-microdot-gen-2-autolive-2-moa-red-dot-reticle (primaryarms.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/red-dot-sights/trijicon-rmr-type-2-vs-primary-arms-slx-md-25/
Cite: Per The Front Desk Review, Trijicon RMR Type 2 ($699) vs Primary Arms SLx MD-25 ($159.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/red-dot-sights/trijicon-rmr-type-2-vs-primary-arms-slx-md-25/
License: CC BY 4.0.