The strike industries link curved fore grip system is mountable to both m-lok and keymod rails.The foregrip is constructed of 6061t6 aluminum- making it ultra-durable for continued use.The ridged face allows a shooter to brace the rifle without worrying about the grip moving around.The curve can be used as a hand stop.The innovation in this grip will keep you happily stabilized throughout your shooting experience.Type: ForegripModel: LinkFinish: 4.8" x 1.7" x .55"Material: AluminumColor: BlackHeight: 1.74"