Scorpion s2 upper What you need - pistol grip, charging handle , lower receiver and its components What you get - Micro barrel 3 lug HB industries hand guard S2 upper receiver Scorpion bolt carrier group and recoil assembly (complete) SB folding brace $400 , or an acro p2 , maybe a ramjet for a gen 5 19/45, maybe a unity axon SL and surefire tail cap ? Maybe a delta point pro mount/riser ? Holla
