
Originally Posted by
foxtrot
I'm not sure but PSA may be compatible with CMMG? I can't remember if I ever cross mated them at the shop but it kind of seems like I did. Can't be sure as far as the buffer tube though.
I've seen some AR-10's people brought in that didn't mate well on the otherhand, it's a pain trying to ID things based on counting bolt lugs.
They just had a deal on CHF keymod complete PA-10 upper's too.... around $600 for a FN cold hammer forged, double chrome line barreled upper... shoulda snagged one. Probably last three generations. After that, everything listed as out of stock, now gone. They were talking about releasing gen 2 PSA lowers not that long ago (4 months or so), with suggestions that they would be in stock in 90 days, then 90 days again, then 90 days again, so I wonder if something up and completely imploded as far as that goes and they have zero production.
A lot of AR-10's have kinks across various manufacturers, but generally they are easy to work out - including PSA.