The Leupold Mark AR Rail Mount solves two common problems when mounting a scope to AR-style platform: getting the right scope height and the correct eye relief. The Mark AR rail mount provides the most rock-solid mounting solution in the business. A one-piece mount gives you an easy and perfect match for your precision Leupold scope. The Mark AR mount features a 5-bolt design for a secure hold and 3 lugs on the bottom to withstand recoil. Color: Matte Black Number of Bases: 1-Piece Style: Picatinny The Leupold Mark AR Rail Mount offers you a STANAG fit which means more contact area with the Picatinny rail for an exact fit. Made in the USA. Mfg: Leupold