So far I found this !!! - DPMS Panther A3 Lite-16 Complete Upper Receiver- 5.56 NATO - Surplus Ammo $379 hell I will even settle for used if I could get it cheaper, now IM talking about COMPLETE, another words bolt carrier group and charging handle Please don't preach about the u get what u pay for thing. IM just building a simple blasting/bumpfire iron sights only light as possible M4. I already put big money in one. Now IM going cheap on the other This is what I do have And this is what IM building, I already have the lower, but IM getting the stock, and handguards soon. I do want it to have an A2 upper but Ill settle for any thing being as I have a spare A2 upper.