The FAB Defense GLCORE Impact Stock in Black combines advanced recoil reduction with versatility and toughness. With a 3-setting adjustable mechanism it provides customizable recoil absorption for various calibers whether you're using 5.56 for distance shooting or buckshot for close combat. Built for durability this buttstock easily mounts on any mil-spec or commercial carbine tube ensuring improved accuracy and control in every shot. Tube not included.