The AD-DELTA-C mount is made for putting high power glass onto a SCAR or flattop style AR15/AR10. The AD-DELTA-C is an offset scope mount with 2 inches of eye relief built in. Optic centerline height is 1.5" for 30mm rings. It is precision machined from 6061 T6 aluminum and finished in hard coat T3 Mil-Spec anodize. Horizontal rings. It features the Patented QD Auto Lock(tm) Lever system to accommodate both in-spec and out-of-spec rail systems.Features: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.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.