Magpul UCS Black Folding Universal Carbine Stock fits any firearm with an M1913 Picatinny rail on the rear of the receiver. Features a reversible folding hinge for left or right configurations, 5-degree drop angle for charging handle/ejection port clearance, and a reversible M1913 clamp with half-slot height adjustment. Ambidextrous 6-position LOP adjustment offers 3 of range via side buttons. Includes two tool-less, reversible cheek risers (0.50 and 0.75), reversible anti-rotational QD sling socket, and a MOE SL Enhanced Rubber Butt-Pad (0.70). Length: 7.60-10.60. Weighs 18 oz. Made in the U.S.A. Safety note Follow all manufacturer installation instructions. Verify proper fit and secure mounting before use. Comply with local firearm laws and regulations.