So I kinda touched on this in my introduction, but THANK y'all! My husband and I both have been reading through this forum almost exclusively for the past two weeks.
It all began when he decided he wants to start casting bullets and decided that my rifle (32 Tula Hex Mosin), a 30-30, and both of our .45's will be his subjects. He so graciously informed me that in doing so he wasn't going to worry about buying any more jacketed bullets for my rifle in the interim. So he says, "but don't worry babe, palmetto has a sale going on, why don't we build you a AR10!!" (Thanks to ya'll, I now remind him about his poor nomenclature since it's a PA10) .
So since he's built multiple 15's from palmetto, we assumed (we all know what that means right?!?) that a 308 would be just as hassle free. Well, it has been, kinda, but only because we found this forum and read through just about every PA10 thread we could find prior to the parts arriving.
The only serious issue so far is the typical problems with buffer/spring/tube. Caught it, and we're waiting on palmettos response. Secondly, the gas tube is indeed too short (or at least our opinion too short) on mine. It may function fine with the wide open gas block it has, but he suspects that it may not cycle reliably with the planned adj gas block and possibly heavier buffer. Not too worried about that at the moment regardless. Bolt catch is good to go, and Gen3 20rd pmags fit full or empty and realese well. Back on the gas tube, it isn't really squared in the upper either. It blatantly drags the carrier when they meet. We suspect it's hitting the barrel nut, however again, waiting on palmettos response before I take anything apart.
If anyone is wondering, the buffer problem is that even with the short 2.5" buffer, the carrier still touches the lower at full rear travel. I don't recall the tube depth, but he thinks thats whats out of spec. Shouldn't be hard to fix regardless, just glad we learned from y'all and didn't shoot it right out of the box and beat up the lower.
Only other gripes so far are minor fit finish issues, and the fact that the rail came out of the box deeply scratched although it wasn't purchased as a blem.
Also, we are fully prepared for the extractor/ejector issues should they arise.
Please don't interpret any of this as bashing on palmetto. We've had exceptional experiences with them in all the other parts and builds we've purchased from them. They're just still learning this big AR stuff and haven't refined their processes I guess.
Just as a FYI, these are completed lower and upper Gen 2 assemblies purchased direct from them. The upper is the 18" stainless midlengh with floating Mlok rail, and the lower is the "enhanced" trigger with the ACS L (I think?? Magpul with a trap door).