This is the infamous 500 that has been giving me he'll for the past few days. When I was trying to get the rail off I tried to tap in a larger bit and now it seems that the trigger is stuck. When I pulled the trigger group and pulled the bolt and the carrier out a piece came out with it that I'm not sure where it goes. I'm pretty sure it's a trigger piece but I'm not sure were. The pictures below are the piece and if you guys could help me find its home that would be great.


