I had the chamber blast issues with my gun using a suppressor....I switched from the old style bolt spring to the new blue one and it seemed tohelp ...but occasionally I still get a blast here and there....I run the remington subs and they are whisper quiet and maintain reasonable velocity for...
If you watch the bolt slide the rounds from the mag you will notice that when the mag is loaded incorrectly the top round's rim gets packed behind the next round's rim. This causes the chambering round to pull the second round partially out of the mag and when the bolt cycles it forces the...
mag loading correctly will not fix your issue....
you can bevel the edge with a nail file...and the polishing is done with 1500 grit sand paper and metal polish. both very easy to find at a hardware store.
you crushed the spring on its side.....take the grip back off and make sure the takedown pin spring seats on the grip straight.....and also be sure the detent is still in the hole.
....On the bottom side of the bolt there is a rib that rides on the "next bolt" .... I put a slight bevel on the leading edge(more or less just taking the edge off), polish the bottom surface of the entire rib and add a drop of lube....this will allow the bolt to glide over the rounds instead...
All of my contacting surfaces are mirrors in my gun now....the gun is super smooth....trigger pull is glassy and predictable....and the bolt glides across the hammer. just a bit of lube to coat the bare metal and she is good to go.
I need a towel for all the drool over here.....that is friggen AWESOME!!.....have you done any range testing?...how is the accuracy with the suppressed barrel?....any more pics?...disassembly?...how often does it need cleaned?....I have too many questions!!...sorry.
-Jack
While the bolt is "stuck" try releasing the mag from the gun...see if that causes the bolt to suddenly finish chambering the round....If not then the gun is dirty...... if so, then the bolt is dragging on the next round under the one it currently is chambering. I had this issue on my gun and...