One-piece, aluminum mount with integral rings is precision machined to true MIL-STD 1913 Picatinny specs for a secure fit on flattop receiver rails. Ring height and forward offset are ideal for use with long eye relief scopes. Mounts available for 1"/30mm and 34mm scope tubes. 1"/30mm mount accepts scopes with both 30mm tubes and, using the included polymer adapter shims, 1" tubes. TorxA(R) head screws (4 on 1"/30mm, 6 on 34mm and 35mm) secure each top ring strap to hold the optics tight under heavy recoil. Full-length base clamps to the receiver with five, equally spaced crossbolts for a rock-solid fit and zero movement. Mfg: J P Enterprises SPECS: 6061 T6 aluminum, hardcoat anodized, matte black. Includes instructions and T15 and T20 Torx wrenches. 1"/30mm - Approximately 5A 1/2" (14cm) long, 1A 3/4" (4.4cm) wide, 21/8" (5.4cm) high. 7.1 oz. (201 g) weight. Elevates a 30mm optic .965" (24.5mm), m