hoss10“MK 12 Recce” upper built using a Noveske Afghan 6mm ARC DDF (14.5” unpinned) barrel, Colt keyhole upper, Knight Armament Mk12 Rail (Long FF RAS), PRI Gasbuster charging handle, Knights Armament bolt carrier, Noveske 6mm ARC headspace bolt, gas block and gas tube. On the end is a surefire 3 prong flash hider. This is an insanely accurate upper. Open to parting out as well.
