The Trijicon Compact ACOG Mount w/ Q-LOC Technology features a Mil-Spec drop test rated 6061-T6 aluminum design, with an easy to use one handed tool less mounting system. The spring-loaded design allows for constant retention and maintaining of zero even if the knobs are not tightened. The mount boasts a low weight and low profile design with superior return to zero performance and is compatible with any Mil-Spec or NATO Picatinny rail. Designed specifically for Trijicon Compact ACOG, this lightweight mount is perfect for mounting the compact ACOG on any weapon platform with a Picatinny rail. Matte black anodized finish Made in the USA Distance From To Mfg: Trijicon