I have a 10/22 that i just install a Power Custom hammer and sear kit in. This reduced the trigger pull from 6.5/7.5lbs to a consistant 2.5(I also got a RCBS trigger pull guage). After shooting 40-50rds, it jammed. I ended up taking it apart and a piece of metal fell out. I was that kinda "L" shaped dohickey that flops up and down on one of the pins near the top, I forget what it is called, but in any case, I removed the remaining piece and put it back together and resumed shooting with no apparent loss of fuction. What is it? Should I order a replacement?