The BT46-LW17 PSR (Precision Sniper Rifle) Atlas Bipod mounts directly to any 1913 style Picatinny rail via the included ADM-170-S lever. It is comprised of 6061-T6 aluminum, except the strengthened inner legs which are made from 7075-T6 aluminum that are Mil-Spec Type III hard coat anodized and have heat treated, stainless steel components. Available in black only.Specifications and Features:Cants: YesCountry of Origin: United States of AmericaHeight: 5 to 9 InchesMaterial: AluminumMaximum Height: 9 InchesMinimum Height: 5 InchesSwivel: Yes