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 MOST 1913 picatinny style rails.