FN 15 Carbine 5.56mm NATO 16in Black Semi Automatic Modern Sporting Rifle - 30+1 Rounds - FN America, LLC, is a U.S. subsidiary of FN Herstal, S.A., a global leader in the development and manufacturing of high-quality, reliable firearms for military, law enforcement, and commercial customers worldwide. M-LOK Hand Guard A2 Style Compensator Two Position Thumb Safety 1/2x28 Threaded Barrel Button-Broached Chrome-Lined Barrel