anybody wear out their mkII firing pin?

[Lorenzo]

I keep getting light strikes, all my rounds almost never fire. I took the bolt apart awhile ago to clean it and check it out. Anything I could've done to mess things up? I have put what mostvwould say is a lot of rounds through this gun.

[J.Baker]

Been a while since I've owned/messed with a MkII/93R and I can't recall if the assembly nut just holds the two halves together and is non-adjustable (i.e. tighten it down and that's it), or if affects firing pin protrusion like on a 110 (nut adjusts firing pin travel length). Someone should be able to chime in with a more definitive answer.

[Lorenzo]

the front half of the bolt just unscrews, weird thing is when you screw it back on the threads dont seem to end. You can just keep spinning it without it getting any tighter. The firing pin and extractor claws are held in by a weird u clip, (jesus clip because of what a pain it is to get off/on). If I can figure out how to post pictures from my phone (android) I have some very detailed ones.