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. Torx® 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.