American Defense Manufacturing Surefire M600/M300 Scout Mount w/ SF Rail Standard Lever Black AD-SF-R STD

American Defense Manufacturing Surefire M600/M300 Scout Mount w/ SF Rail Standard Lever Black AD-SF-R STD. It was designed so that the factory Picatinny rail could be installed and used without having to remove the locking lug from the bolt and thus the spring tension could be applied to the clamp screws and prevent the clamp from coming loose (ie: not seize the lugs). It was Developed w/ the help of ex-military personnel and with the benefit of a proven track-record it became an immediate best