Don t leave your rifle system's accuracy to chance. The Leupold Mark AR line of mounts addresses the two common issues of mounting scopes to AR-style platforms - proper height and eye relief - while providing the most rock-solid mounting solution in the business. Combined with the ease of a one piece mount, the Mark AR mount has the perfect match to your precision Leupold scope. The Mark AR mount features a 5-bolt design, with three lugs on the bottom fir a secure hold through any kind of recoil, and a STANAG fit. That means more contact area with the Picatinny rail for an exact fit.ms accuracy to chance the cost efficient Mark AR mount is the answer. Punisher Tested and Verified Lightweight Aluminum Design Lifetime Performance Guarantee Weight: 5.9 oz Height: 1.5" Ring Diameter: 35mm Made in USA