Tactical M4 stock, for pre-ban rifles, features two full inches of adjustability to go from close quarters situations to fully extended in seconds. Quick-release button quickly switches the stock length to five different positions. Soft foam tube provides a soft, comfortable cheek weld. Also features four, silent, 1???" sling mounts, a rubber recoil pad, and a machined-in hammer on the butt for breaching doors and hand-to-hand combat. Precision-machined from a solid, heat-treated, aluminum billet for superb durability and strength. Quick release button can be replaced with the included machine screw to convert it into a rock-solid, adjustable-length-of-pull stock. Available to fit Carbine or Long Extension Tube Model.SPECS: 6061-T6 heat-treated, aircraft grade aluminum, Type 3, mil. spec. hard-anodized, matte finish. Includes ???" thick, rubber recoil pad and screws. Not approved by BATF for post-ban rifles. Carbine - 7???" (19cm) OAL collapsed, extends to 9???" (24cm) OAL. 10???" (27cm) L.O.P. collapsed, extends to 12???" (32cm) L.O.P. Long Extension Tube Model - 10" (25.4cm) OAL collapsed, extends to 12" (30.1cm) OAL. 13-13?64" (33.5cm) L.O.P. collapsed, extends to 15-13?64" (39cm) L.O.P.