PS-10 Gen 3 Compatible Lefty Upper?

PSA Products AR-10
1

Hi - I have a PS-10 Gen 3 in 308 and I’m in the process of building a 6.5CM upper for it. I’m a lefty, and I’ve been doing most of my AR-15 builds with lefty uppers, but compatibility is a little bit more of a challenge with AR-10’s.

Does anyone know of any uppers that come in left hand that are compatible with the PS-10 Gen3 lower?

Here’s what I’ve found so far:

  • PSA does not appear to make lefty uppers
  • Stag uppers look like they fit the wrong general pattern (DPMS vs. Armalite)
  • Next Level Arms indicated over the phone that their uppers are not compatible.
  • Gibbz - unsure if compatible but I built an AR-15 with their lefty side-charger and I wasn’t super impressed with it for the money (getting gas blow-back through the tab that lets the BCG out)
  • Moriarty Arms - picture looks like a bad crop job of Next Level Arms’ upper so assuming it is the same.
  • Bear Creek Arsenal - Not really interested in BCA due to reputation for QC issues.
2

There is no standard with ar10s like ar15s. There may be one out there but with an ar10 it is best to go with the same manufacturer for uppers and lowers to ensure fit and function.