Brand new/unfired DPMS Panther arms piston. 16" chrome lined M4 223/5.56. If you don't know the difference between gas impingement and piston do a quick google. They are very cool. Includes 1 gen 2 PMAG in wrapper and reflex sight pictured. 6 position collapsable. $1200 PM offers and questions only please. You may offer trades, I have nothing off the top of my head that I'm specifically after though. Mainly cash or something interesting + cash. Must pickup in aloha/Beaverton with ID and sign bill of sale. For my records only.