Leupold Mark 4 Rings, Picatinny, 34mm Medium, Black Matte - 178530

Heavy-duty rings and bases are built to withstand extreme service without movement or loss of zero. Larger contact area between the scope/rings and base/receiver for less chance of movement. Large hex nuts on rings allow fast torquing of cross bolts for easy adjustment. Non reflective, matte finish. Mounting screws and Torx® head wrench included. Steel Rings - CNC machined from solid 11L17 cold-rolled bar stock, then blued. Aluminum Rings – CNC machined from 7075 T651 aluminum alloy and hardcoat anodized for maximum strength and wear resistance. Mfg: Leupold SPECS: Steel or aluminum, matte black finish Rings - 1'''' (2.5cm) or 30mm (1.18in) inside diameter. Height from top of base to center of ring for both 1'''' and 30mm: Med. - .84'''' (2.1cm); High - 1.06'''' (2.7cm); Super High - 1.4'''' (3.5cm).