Gahhhh.. I meant to edit this into my post last night but i passed out.
Part #27 cracked in 2 places with less than 500 rounds on the and something was up with the nozzle as well. It stopped firing in auto before that. So I opened it up and noticed. At the bottom of the bolt where the nozzle goes back and forth the hammer had like bent the metal down into the nozzle and was digging into the plastic of it.
It stopped firing in auto. It would fire one shot then lock back, but locks back further than the bolt catch and I would have to take the front body pin and pull the lower off a tad to