Caldwell XLA 13.5-27in Bipod - Black - XLA Bipods provide a stable shooting support that conveniently attaches to almost any firearm with a sling swivel stud. XLA bipods solidly clamp to the swivel stud of the firearm and remain firmly in place without swiveling or twisting while shooting. The lightweight aluminum design adds minimal weight and deploys quickly, with legs that instantly spring out to the shooting position with the touch of a button.