This black tactical lever ADM 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). Featuring the Patented QD Auto Lock Lever system to accommodate both in spec and out of spec rail systems. This bipod mount is precision machined from 6061 T6 aluminum and finished in a hard coat T3 Mil-Spec anodize. ADM Harris AD-BP Black Tac Lever Bipod Base AD-BP-TACR