So I finally got my 9mm AR together and figured I would head to the range now that A6 is done. I had some 124GR freedom rounds left over from A6 which appeared to plunk test good(129 PF if anyone wants to know...). First two rounds I got FTE with a case seriously shaved down. Read up a bit and looked into the extractor. Adjusted it and cycled a few rounds it was good to go.
Then, BOOM with a face full of hot gas...it fired out of battery. Case head separation with brass left in the barrel. From what I have read best solution is to get some cerrosafe, melt it in the brass and once cooled knock it out from the muzzle end with a brass rod.
After I get the the brass out I may be on the phone with PSA as there have been a few too many issues with this upper since I got it.
Then, BOOM with a face full of hot gas...it fired out of battery. Case head separation with brass left in the barrel. From what I have read best solution is to get some cerrosafe, melt it in the brass and once cooled knock it out from the muzzle end with a brass rod.
After I get the the brass out I may be on the phone with PSA as there have been a few too many issues with this upper since I got it.