American Defense AD-22 STD Riflescope Optic Mount, Black The AD-22 Burris Fast Fire Mount was designed as a quick detach solution for the Burris Fast Fire 1,2 and 3 mini red dot optics. Also fits the Doctor mini red dot optics. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. It features the Patented QD Auto Lock Lever system to accommodate both 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 insure maximum rail engagement