The AD-RECON-H mount is made for putting high power glass onto a flattop style AR-15. Designed to be used in conjunction with a Laser Sighting System to bring the Objective Housing high enough to clear the laser, or rifles needing a higher cheek weld. This is the tallest mount that we offer. The cantilever throws the scope out front with 2" offset, allowing you to get the right eye relief. 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. For 30mm rings. ADM AD-RECON-H 30mm STD Lever Cantilever Mount