The AD-BP Bipod Mount enables you to attach a Harris bipod to your railed forearm. Not compatible with the Tac Lever ( Lever interferes with the bipod itself ). 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. ADM Harris Tac Lever Flat Dark Earth Bipod Base AD-BP-TACRFDE