tactical-heavy-duty-1-inch-low-medium-high-profile-ring-rifle-scope-mount-weaver-and-picatinny-mount
tactical-heavy-duty-1-inch-low-medium-high-profile-ring-rifle-scope-mount-weaver-and-picatinny-mount, Fit on 21 mm picatinny rail, 1 inch Scope ring.Low Profile: 0.312"Medium Profile: 0.437"High Profile: 0.625"