Went to the range with my Colt Lightweight Commander the other day. This is a gun that hertofore had worked fine. This trip, I encountered an ignition problem. The firing pin was not hitting the primers hard enough to detonate them. I thought maybe the mainspring was weak, so I swapped in the spring and housing from my friends GM that was firing just fine. No change.
I detail stripped it and inspected every part. It all looked fine. Any suggestions?