Well I took the side plate off and cleaned out some brown gunk (not cosmoline) and cleaned and lightly oiled the trigger arm, spring, and trigger housing. This is where it gets bad. After I reassembled it all, I ran some cycle tests and I got this grinding noise so I took it apart and tried again, this happened 3 times then finally I tried again and the trigger pull got loose. I took it apart again and look what I found.
The left side arm is bent. It was perfectly straight. Should I order a new one or try to straighten it back out? Thanks.