Trijicon's MRO Low Mount Quick Release features a Mil-Spec drop test rated 7075-T6 aluminum design, with an easy to use one handed tool less mounting system. It is lightweight and compatible with any Picatinny rail. This model has a matte black anodized finish.The Trijicon MRO low mount quick release features a Mil-Spec drop test rated 7075-T6 aluminum design, with an easy to use one handed tool less mounting system. This return to zero mount boasts a low weight and low profile design, compatible with any Picatinny rail. Designed specifically for the Trijicon MRO. This lightweight Low mount is perfect for mounting the MRO on any weapon platform with a picatinny rail that requires a low optical height. Such as a shotgun, 22 rifle, AK or pistol platform. Features: Distance from top of mounting rail to optical axis is 1.043 inches Fits the Trijicon MRO reflex sight Made in USA