FAB Defense GL-Shock Stock with Cheek Riser and Rail Adapter Black

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. Adjustable Cheek Piece with Built-In Dual Picatinny Rails allows optimal Buttstock functionality. FeaturesUnique 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.Adjustable Cheek Rest with built-in dual Picatinny rails.Allows optimal buttstock functionality.Ideal Mounting Solution for SH-5.