I just finished the build. I’m running a PSA complete lower (glock). The upper is a brownells upper with a ballistics advantage 8.3" barrel with 1/2x28 thread, and a tool craft 9mm bcg. I mistakenly thought the barrel had a feed ramp, but it has the cone feed system. Upon hand cycling, I discovered that hollow points will not feed. The only solution I can think of is to get the Taccom lower feed ramp. https://taccom3g.com/product/taccom-glock-lower-feedramp/ Can anyone confirm Taccom lower feed ramps or another solution?
I ran some hollow points thru a Gorilla machining barrel with no issues…Glock lower………their barrels are like 55.00 for the 16 inch which I have on their website………You could send the upper to Macon Armory and let Rudy do his magic to the feed cone…….I sent him a worthless Faxon barrel and he got it running on everything……….gobbles up the ammo…………fast turn around.