American Defense Mfg., AD-Recon-S Scope Mount, Dual Quick Detach, Vertical Spit Rings, 30MM, Standard Height, Black Features of American Defense Manufacturing AD-RECON-S QD Scope Mount, Finger Adjustable: Does not require proprietary tools for mount adjustment. Mount 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. Precision machined from 6061-T6 Aluminum. Hard coat anodized for a lifetime of performance. Fully adjustable to fit both in spec and out of spec rail systems. Features the Patented QD Auto Lock Lever system. Lifetime Warranty.