The PSAs are an interesting option I hadn't thought about. I've had a 16" 5.56 complete upper (bought new) and a 16" 9mm complete upper (bought used) that were just fine for the few rounds I put through them before moving them on. I guess I forgot they can be decent if you're willing to run the risk of having to "finish their build" as someone said.
Right now I'm not sure what's nuttier. Is it:
1. Considering a new PSA upper and lower to have a complete 11.5" pistol for ~$500
2. Considering a used BCM 11.5" upper w/o the bolt and CH for ~$500 putting me closer to $650 for just the upper
3. Considering either when today's range session proved that what I REALLY need is a case of 9mm, a case of 5.56, a class or 5 and a gym membership...