NcStar Compact Mil-Spec Stock is a black synthetic collapsible buttstock, 0.8 (20mm) shorter in length, for mil-spec buffer tubes (tube not included). Features a sleek design with a metal QD base on each side for QD slings, plus several molded-in 1.5 sling loops. Integrated rubber butt pad provides non-slip, secure shouldering, comfort, and recoil mitigation. Unique latch mechanism first click adjusts stock position, second click enables mounting/demounting from the buffer tube. Safety note Follow all manufacturer installation instructions. Verify proper function and secure mounting before use. Comply with local firearm laws and regulations.