GL-Shock - FAB Shock Absorbing Butt Stock
Revolutionary patented recoil-reducing mechanism built hidden inside the stock with a premium silicon chrome alloy spring Unique patented "anti-rattle"        mechanism.Slick new design with no protruding parts, will not hang up on gear and webbing.Unique new slick and quick operated inversed positioning lever, integral ribbed rubber butpad with a no slipdesign, integrated "QD" sling swivel        connectors on both sides.Watertight battery storage for two CR123A 3V Lithium Batteries / AA 1.5v Fit perfectly on both tubes - MIL-SPEC and commercial Aftermarket!Made from mill-spec reinforced composite Polymer