SOPMOD Certified for U.S. Special Operations Command (USSOCOM); Made from aircraft grade 7075-T6 billet aluminum; Nut and clamp system providing 1,400 pounds of clamping force per nut; Precision machined shear lugs to lock the optic in place during recoil; Mounting surface spans 8 picatinny sections; Interchangeable caps without loss of precision or return-to-zero; Rigorously tested and certified by USSOCOM