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Quick-release lever-lock system clamps solidly to flattop rail and will not work loose even under heavy recoil—the more force acting on the lever, the tighter it locks. Depress the release tab to swing the lever open, and the mount easily lifts off the rifle. Adjustable with a flat head screwdriver or even a coin for an ultra-secure, no-slip fit on almost any Picatinny or Weaver-style rail, including over- or under-sized commercial rails. Lever may be configured to lock to the front or the rear to suit the operator’s preference. Large locking bar on the side of the mount engages the maximum amount of rail area, while the crossbolt and two integral locking lugs ensure rock-solid engagement of rail slots to prevent movement under recoil. Five heavy duty steel hex head screws (three on top, two on bottom) clamp the vertically split ring halves together. Cutouts in the ring sides and in the base reduce weight without sacrificing strength. Quick-Release Scope Mount one-piece base with dual-lever system provides the same solid mounting and fast removal and reattachment.