This exceptional design allows you to fit numerous mission-specific accessories such as forearm grip, bipod, flashlight and others, on any of the 7 Picatinny/Weaver Rails. Specifically designed and manufactured to give a 100% secure fit that does not restrict barrel movement. 7th Rail located above the barrel is adjustable in height to ensure maximum accuracy while using a laser sight. Constructed of billet aviation grade aluminum using CNC machinery. Easy to fit. No Gunsmithing required. Accompanied by Long & Short heat-resistant rail covers.