M16 A1 upper receiver complete. Proper Colt pencil barrel, Colt full auto bolt carrier, NDS upper and color matching charging handle. Nice looking retro piece. I built it for my fathers 70th birthday. He's owned it for two years and now has decided he likes 9mm AR's better. I'd keep it, but I'm pinched for cash right now. $500 shipped. Cash, money orders, checks, Visa or Mastercard. Interested parties should call ---- Upper has been sold. Thanks -------