PSA upper and lower receivers. PSA lower parts. Colt barrel, BCG, buffer tube, buffer, and buffer spring. 12" Troy quad rail. Magpul ACS stock and MOE K2 grip. BCM charging handle. Carry handle is surplus, rattle canned. Colt parts have seen 180 rounds. PSA receivers have 40 rounds through. Built with all the correct torque tolerances. 2 Pmags. $800 obo. Trade Interests G19 + cash CM9 + cash HK P30 9mm HK P2000SK 9mm CZ P-01 + cash Sig P239 SAS 10/22 takedown stainless threaded barrel + cash M&P 15-22 threaded barrel + cash P220 Carry SAS M-11 G17 or 21 (especially a turd color or OD frame) + cash M&P 9 VTAC M&P Shield 9 + cash There are other things I would take an interest in, but at this time I am less interested in shotguns and revolvers. I also do not desire any 1911s, save a Carry Scorpion, as I already have a couple of nicer ones that scratch that 1911 itch well enough for me. I can add AR accessories if needed and I also would be open to additional items in lieu of cash. Other than the afore mentioned limitations I could be somewhat flexible.