upon disassembly I noticed that the titanium safety plunger was being beaten significantly. Many peen marks on the lowest part of the upper portion (not the part that protrudes). This is on a Glock 21. Factory striker. So far hasn't caused a malfunction, but this is the second time I've had to dress with a file and clean up with a stone. trigger bar seems to push it up out of the way sufficiently. Anyone else had this problem? Thanks, John