There are two common issues when mounting scopes to AR-style platforms getting the right scope height and the eye relief. The Leupold Mark AR family of mounts solves both these problems while providing the most rock-solid mounting solution in the business. Combine that with ease of a one piece mount and you have the perfect match to that precision Leupold scope. The Mark AR mount features a 5 bolt design for a secure hold, 3 lugs on the bottom any kind of recoil, and a STANAG fit which means more contact area with the Picatinny rail for an exact fit. Don t leave your rifle systems accuracy to chance the cost efficient Mark AR mount is the answer. Punisher Tested and Verified Lightweight Aluminum Design Lifetime Performance Guarantee Weight: 5.8 oz Height: 1.4 " Ring Diameter: 30 mm Made in USA