BLACK RAIN FISSION AR15 556 GREY BATTLEWORN 16" FLATTOP DIRECT INPINGEMENT, 30RD MAG. FACTORY PART BLACK RAIN FISSION AR15 556 GREY BATTLEWORN 16" FLATTOP DIRECT INPINGEMENT, 30RD MAG. $1,199.00 Is your product not in stock? Find it here!