Originally Posted by Tenderribbs
It's odd that the bolt Carrier gas key is unharmed? Don't know what that means!
I'm no expert, but just from appearance, I'd say it split from the front of the bolt, and the bolt got rammed backwards splitting the carrier, releasing the threading from the gas key fasteners, and the pressure blew the gas key up out of the way unharmed. Just guessing from the look of it. I'm wondering what the receiver and chamber looked like.