Fab Defense GL-Shock AR-15 Stock Black Adjustable Cheek Rest

The revolutionary patented FAB Defense 'GL-Shock' absorbing Buttstock contains a recoil-reducing mechanism with a built in premium silicon chrome alloy spring creating a State-of-the-Art stock for your M4/M16. Features Unique Patented "Anti-Rattle" Mechanism Sleek Design with No Protruding Parts,Will Not Get Caught on Gear and Webbing Unique Slick and Quick Operated Inversed Positioning Lever Integral Ribbed Rubber Butt Pad with a Non Slip Design Integrated Quick Detach "QD" Sling Swivel Connectors on Both Sides Watertight Battery Storage for Two CR123A 3V Lithium Batteries / AA 1.5v Fits Perfectly on Both Tubes - MIL-SPEC and Commercial Aftermarket! Made from Mill-Spec Reinforced Composite Polymer With an Adjustable Cheek Rest