Threads were gunked up - Faxon Firearms Match Series Glock 9mm Luger Threaded Pistol Barrel w/ Flame Fluting

Went to thread on my suppressor and it had so much coating on the threads it ended up pushing my piston off center and locked onto the barrel I tried heat, leverage etc ended up having to cut off the piston and the barrel is ruined now as is my suppressor end cap and piston this all after one mag thru the brand new barrel