Bravo Company Bravo Company, BCM MK2 Recoil Mitigation System, Mod 1, 8 Position Buffer Tube Complete Assembly, Matte Finish, Black, Includes T2 Buffer, M16A4 Rifle Action Spring, MK2 Receiver Extension, QD End Plate, Castle nut, Fits AR Rifles BCM-MK2RMS-M1T2