The Trijicon MRO Low Weaver Mount Quick Release Mount with Q-LOC Technology 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 Weaver rail. – Designed specifically for the Trijicon MRO. This lightweight Low Weaver mount is perfect for mounting the MRO on any weapon platform with a Weaver rail that requires a low optical height. Such as a shotgun .22 rifle or pistol platform. – Matte Black Anodized Finish – Made in the USA