The enclosed-emitter ACRO and the open-emitter RMR are two very different mounting systems. Here is how they compare and what it takes to run one on the other.
| Spec | Aimpoint ACRO | Trijicon RMR |
|---|---|---|
| What it stands for | Advanced Compact Reflex Optic | Ruggedized Miniature Reflex |
| Emitter | Enclosed | Open |
| Mounting pattern | Enclosed-emitter dovetail/interface, two screws | Two rear mounting screws with two forward recoil lugs (posts) |
| Key dimensions | — | Rear mounting screws 18.8 mm (0.74") apart · front locating sockets 22.5 mm (0.89") apart · front-to-rear spacing 22.3 mm (0.88") · #6-32 mounting screws |
| Optics we track | 3 listed | 28 listed |
Are the Aimpoint ACRO and Trijicon RMR compatible?
Not cross-compatible. The Aimpoint ACRO and Trijicon RMR are distinct footprints — an optic built for one won’t sit on a slide cut for the other without a dedicated adapter plate (where one exists). Buy the optic that matches your slide’s cut, or a plate that converts it.
Popular Aimpoint ACRO optics
Popular Trijicon RMR optics
- Ameriglo Haven Red Dot Sight 5.0 MOA Dot Reticle
- Ameriglo Haven 3.5 MOA Red Dot Sight
- Bushnell MPO Pro-S Circle Dot — RMSc / J-Point Footprint Red Dot, Black
- Bushnell MPO-DF 3.5 MOA Dot Reticle — RMR Footprint Reflex Sight, Black
- Bushnell MPO-F 3 MOA / 33 MOA Bullseye Reticle — RMR Footprint Red Dot, Black