The American Defense Manufacturing AD-RECON cantilever riflescope mount is designed for mounting riflescopes on flattop AR15 rifles. The AD-RECON provides optimal rail clearance for riflescopes with up to a 56mm objective diameter, allowing for a wide range of riflescopes to be mounted on the rifle. The AD-RECON cantilever mount is machined from 6061 T1 aluminum and finished with T3 anodized hard coat. The patented QD Auto Lock Lever System is now made from titanium for maximum durability and weight reduction. Features of the American Defense Manufacturing FDE AD-RECON Cantilever 2" Offset Scope MountPrecision MachinedHard Coat AnodizedFully AdjustableWorks With Spec & Out Of Spec RailsMade in USA ADM AD-RECON 40mm FDE Cantilever Scope Mount 2" Offset