FEATURES:-Machined from 6061-T6 extruded aluminum-Matte black finish-For Browning AB3 Long Action-0 MOA-Mounting Hardware: Hex head screws & wrench provided-Installation: EGW recommends 20 inch lbs. of torque & a drip of blue Loctite*Comes standard with a bevel on both sides, making it ambidextrousPRODUCT SPECIFICATIONS:Dimension 0.95 X 3.45 X 8.55Height 0.9500Width 3.4500Length 8.5500STYLE PICATINNYFINISH BLACK MATTEMATERIAL ALUM ALLOYTYPE OF RINGS NEEDED MIL-STD 1913 PICATINNYRINGS INCLUDED NOTHER FEATURES: MADE IN USA