Trijicon Q-LOC, Quick Release, Cantilever Mount, 1.535 Height, Fits 30mm Optic Tube, Anodized Finish, Black AC22040 Trijicon Quick Release Mounts with Q-LOC Technology are designed for the most discerning users. This line of premium specialty mounts features a proprietary design that offers a spring-loaded attachment mechanism, allowing for easy, one-handed attachment along with redundant design features to provide a superior return to zero performance. Trijicon's mounts with Q-LOC Technology are offered for Trijicon red dots, thermal optics, and a wide range of riflescopes.