Trijicon MRO Lower 1/3 Co-Witness Mount 1.66" Aluminum Black Anodized Picatinny

The Trijicon MRO Lower 1/3 Co-Witness Mount is a precision optic adapter engineered specifically for the Trijicon Miniature Rifle Optic (MRO) and MRO Patrol red dot sights. Machined from rugged aluminum and finished in a low-glare black anodized coating, this slimline mount clamps directly to any standard Picatinny rail for a rock-solid, repeatable sight connection that holds zero under hard use.

Set up for lower 1/3 co-witness, the mount positions the optic's optical axis at 1.663" above the rail, leaving the lower third of the sight window clear so fixed iron sights remain visible through the sight picture. This height provides a natural, heads-up shooting position while still allowing fast, intuitive transitions to backup iron sights. The mount measures 1.500" in overall length and weighs only 1.78 oz, keeping your rifle or carbine setup light and well-balanced.

Installation is straightforward with the included hardware. The package ships with the mount, 4 mounting screws, and a hex key for installation. Whether you are running a flat-top rifle or any other firearm with a standard Picatinny rail, this Trijicon mount provides the rugged, dependable mounting solution your MRO needs to perform at its best.