I clean my PCC after every match... after a thorough cleaning .. i noticed the firing pin would stick in the forward position.. it protruded out of the bolt.. I could manually push it back in... after careful examination i found the firing pin was "peened" a little which caused it to stick out the front of the bolt... (by the way my upper is a complete Taccom upper) ... i changed the firing pin spring which did not correct the problem. so installed a new Taccom firing pin... which solved the problem.. i surmise the old firing pin has about 5 to 6 thousand hits on a primer... just curious --- what kind of service is everyone getting on their firing pins in their PCC's
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