GG&G 30mm Sniper Grade Scope Rings were selected by the United States Marine Corps for their Designated Marksman Rifle (DMR) Program. They were also chosen by ITT Defense Systems for use with their highly regarded Model 7201 Day/Night Scope. A proprietary square recoil cross lug is utilized instead of the typical round screw. This square recoil cross lug has been welded to the ring base for added strength. Four steel cap screws attach the top portion of the ring to the ring base. Manufactured from 4140 billet steel, the rings have a black manganese phosphate mil spec finish. These rings are tall enough to accommodate a scope with a 56mm objective lens and Butler Creek lens covers on a Remington 700 BDL rifle.