10-12-2023, 02:43 PM
This is an AR15parts.com upper. I've got around 1K or so rounds through it all factory ammo ( I don't reload yet). I had around 100 rnds through it since the last cleaning with no problems on function. It was a mixed mag of PPU HPBT and Hornady HPBT so hard to say which round it was and since it was night and I didn't know the cause I don't have the other half. I'll get a pic of the top tonight but it came apart right at the base of the shoulder just like a little funnel. BTW: after finding the issue and a through cleaning I went last night and killed six hogs, including a 325# sow with no issues, same ammo.
Jay
Jay