Made in the USA, the American Defense Manufacturing Harris Swivel Bipod Mount is designed expressly to enable the mounting an S-style (swiveling) Harris bipod to a railed forearm. It is not compatible with the Tac Lever. Machined from 6061 T6 aluminum and Type III hard-anodized (Mil-Spec), this accessory is fully adjustable to permit use of rail systems that are within and outside of Mil-Spec. Secures via American Defense MFG's patented QD Auto Lock Lever System, and carries a lifetime warranty (as with all of ADM's products). American Defense Manufacturing ADM Harris-S Swivel Bipod Mount AD-BPP2