Came down to a plasma cutter chopping the bcg into two pieces. The back half removed out the back of the upper receiver and the front half with bolt still locked into the barrel extension was removed. This is my understanding. I don’t have pics unfortunately. Mos-Tek owner said mail it to him and he’ll do the rest to get me back up and running! Thankfully I have an extra Seekins .308 BCG and bolt. SA AGB and tube were spared in all this.