Complete factory original Colt A2, 20" AR upper. Fully functional, includes bolt, carrier and charging handle. 1-9 twist barrel threaded/A2 flash hider. This upper has been used but not abused. Way low round count. Has a little honest wear, here and there if you look close. Still a great piece. 550.00 shipped(Outright sale price)PayPal or Postal Money Order. May consider trades??? 1911's GLOCK's Complete 16" or 10" AR upper 7 or 8 twist Leupold scopes 40 or 50 mm with varmint or M1 target knobs Remington 700 chambered in .222 Rem Mag, 6.x55, 7x57 or 300 Savage. May be open to other trades, custom knives, quality binos etc.