Trijicon's Cantilever Mount with Trijicon Q-LOC features a Mil-Spec drop-test rated 6061-T6 aluminum design, with an easy-to-use, one-handed toolless mounting system. The spring-loaded design allows for constant retention and maintaining of zero, even if the knobs are not tightened. The 20 MOA cant provides additional elevation adjustment for long shots. This mount boasts a low-weight and low-profile design with precise return-to-zero performance and is compatible with any Mil-Spec or NATO Picatinny rail. It is perfect for mounting Trijicon variable-powered tube scopes with objective lenses up to 56mm.