Kriss USA DS150 Stock is a black synthetic (polymer) stock fitted for AR-15 carbines with mil-spec buffer tubes. OAL is 7.13, weight is 14 oz. Features ambidextrous QD sling mount sockets on both left and right sides, plus a preinstalled removable rubber shock pad. Note: AR carbine mil-spec buffer tube is not included with this stock. Safety note Follow all manufacturer installation instructions. Verify proper function and secure mounting before use. Comply with local firearm laws and regulations.