This American Rifle Company M10 QD-L 1.37" mount has 30mm rings and 0 MOA. With two innovative spring-loaded, pivoting rail clamps, this quick detach mount is faster and quicker than one with levers. Made from high-strength, lightweight aluminum and anodized with Mil-A-8625 Type III hardcoat, this easy to install mount has recoil reduction and crowned rail interface for a precise return-to-zero. American Rifle M10 QD-L 30mm 35mm Mount M10-2-00-30-35-00