Features: Designed as a quick detach solution for the Burris FastFire mini red dot optic Precision machined from 6061 T6 aluminum Finished with hard coat T3 Mil-Spec anodizing Patented QD Auto Lock Lever system QD Auto Lock Lever system accommodates in spec and out of spec rail systems Does not require proprietary tools for adjustment Can be adjusted with your finger or a flat blade screwdriver Lever can be configured to lock to the front or the rear Superior clamping surface to ensure maximum rail engagement Mfg: American Defense Manufacturing Fits Burris FastFire. Mounts to Picatinny rails. Weight - 2 ounces.