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Description
A lightweight aluminium mount adapter that fits Trijicon RMR-footprint optics to any rifle with a Picatinny rail, giving a lower 1/3 co-witness with the backup iron sights.
Designed specifically for the Trijicon RMR, this mount adapter fits RMR-footprint optics to any rifle platform fitted with a MIL-STD 1913 Picatinny rail. It uses a see-through, lightweight rugged aluminium design with a matte black anodised finish.
The mount sets a lower 1/3 co-witness, holding the optic higher than the backup iron sights for a less cluttered field of view, with the irons visible in the lower third of the optical window. Measured from the top of the mounting rail to the optical axis, this comes to 1.516 in. for the RMR footprint and 1.757 in. for the Trijicon SRO.
Key features
- Lower 1/3 co-witness — The optic sits above the backup iron sights for a lower 1/3 co-witness, keeping the sight picture uncluttered while the irons stay ready in the lower part of the window.
- See-through construction — A see-through design keeps the mount lightweight and improves the field of view.
- Picatinny rail fit — It fits any MIL-STD 1913 Picatinny rail, so it mounts on any rifle platform with that rail.
- Aluminium build — The mount is made from lightweight, rugged aluminium with a matte black anodised finish.
Typical applications
- Adding an RMR-footprint red dot to a Picatinny-rail rifle while keeping a backup iron sight co-witness.
- Fitting a Trijicon SRO to a Picatinny-rail rifle at a lower 1/3 co-witness height.
- Upgrading a rifle's optic setup without losing a clear, uncluttered sight picture.
Technical specifications
| Weight | 2.4 oz. (68.04g) |
| Length | 1.78 in (45.21mm) |
In the box
- 1 × Picatinny Rail Mount Adapter for Trijicon RMR® Footprint - Lightweight 1/3 Lower Co-witness
- 2 × Optic Mounting Screws
- 2 × Allen Wrenches
Model information
| Brand | Trijicon |
| Model | Picatinny Rail Mount Adapter for Trijicon RMR® Footprint - Lightweight 1/3 Lower Co-witness |
| MPN | AC32059 |




