The GG&G 30mm Sniper Grade Scope Rings are not only ergonomic, but are light as well. Each ring only weighs four ounces. Not bad for a ring manufactured from solid billet 4140 steel. Prior to being manganese phosphate treated with a matte black combat finish, all components of the ring are carefully de-burred so as to eliminate any sharp edges. The square recoil cross lug will ensure a positive engagement with the mounting rail. Four steel cap screws attach the top portion of the ring to the ring base. These scope rings are tall enough to accommodate a scope with a 56mm objective lens and Butler Creek lens covers on a Remington 700 BDL rifle.