6061 T6 aluminum construction Hard coat T3 Mil-Spec anodized finish Made for use with Harris bipod Snaps on and off quickly Made in the U.S.A. Includes manufacturer's lifetime warranty Fully adjustable to fit both in spec and out of spec rail systemsThe American Defense Ad-BP Mount makes the Harris bipod even better. This mount gives you quick detach capability so it moves easily from one gun to another.The Ad-BP Mount is made of 6061 T6 aluminum with a durable, hard coat anodized finish. It comes with a lifetime warranty from American Defense and was made with pride in the U.S.A. Mfg: American Defense Manufacturing SPECS: 6061 T6 aluminum, Anodized hard coat finish, Quick detach, Made in U.S.A., Manufacturer's lifetime warranty.