Caldwell 1071001 7-Rest 16-24" Vertical Adjustment, Green Aluminum, Ambidextrous Design for Universal Firearms

The 7-Rest is a truly innovative shooting accessory that utilizes its unique design to deliver exceptional versatility and true value. The asymmetric frame provides great stability while maximizing length adjustability. By simply loosening the lock knob, the angle between the two halves of the frame can be adjusted to change the distance between the front and rear supports. Having the frame offset to the side of the gun also gives adequate clearance for extended magazines on semi-autos (AR-15),