These rings are precision machined to true MIL-STD 1913 specs to fit Picatinny-type bases such as Brownells Modular Flattop Riser Mount and Picatinny Scope Bases. No special wrenches needed for installation. Underside of ring is undercut with a rounded radius that offers extra clearance for finger tightening the nut and for final tightening with a standard socket or flat-blade screwdriver. Extra-strong U.S.-size hex nuts have a deep slot that provides maximum engagement of screwdriver blade to help prevent slippage and slot damage—you can even use a U.S. quarter in a pinch. Crossbolt has a square shank that serves as a recoil lug to solidly engage scope base when properly installed to ensure rings won’t shift forward under recoil. Four, strong 6-40 x ¼" T-15 Torx® head screws securely anchor the ring halves, and large contact area with scope helps prevent slippage even on heavy-recoiling, magnum rifles. Available in 4140 billet steel for superb strength and stability, or aluminum models machined from 6061 T6 billet for reduced weight. Matte black finish blends with most factory rifle and scope finishes. Replacement nut, crossbolt, and aluminum or steel side locking bars available separately.
SPECS:
Rings sold in pairs. Models available to fit 1" and 30mm scope bodies. Steel - 4140 billet steel, black, matte, oxide finish. Aluminum - 6061 T6 aluminum billet, hardcoat anodized black, matte. Heights measured from top of base to center of ring: Low - .825" (2.1cm); Med. - 1" (2.5cm); High - 1.125" (2.9cm); Extra-High - 1.375" (3.5cm).
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