The AD-DELTA-C Scope Mount by American Defense Manufacturing is designed to pair high-powered optics onto rifles such as the FN SCAR or flattop AR15/AR10 rifles. It comes equipped with American Defense Manufacturing’s patented QD Auto Lock Titanium lever system, which is compatible with any in-spec rail as well as out of spec rails. This innovative mounting system ensures superior clamping surface for maximum rail engagement, and can be adjusted with a flat-blade screw driver or your finger. The AD-DELTA-C features an offset design with 2-inches of eye relief built in, and offer a 20 MOA inclination for extending the elevation of your optic. Features of the AD-DELTA-C Scope Mount: Patented QD Auto Lock Titanium lever systemAdjustable with flat-blade screw driver or your finger2-inches of eye relief built in 20 MOA inclination American Defense Manufacturing ADM AD-DELTA-C 30mm Full Titanium 20MOA Dual QD Cantilevered Scope Mount AD-DELTA-C-20MOA-30-TL