This is maybe just one step further than field stripping to clean. But nothing complicated. I pull the striker assembly out of my weapon a couple times a year.
It accumulates a little oil from cleaning which in turn attracts dirt.
I take my extractor out occasionally also it accumulates trash behind it.
Figured I’d give this guy a plug
Murph’s custom holsters. This holster is 6 or 7 years old… it’s been soaked from sweat rain salt water numerous times. As good as the day I got it. Met the guy at a gun show years ago.
I have several of his holsters every time I’ve ordered things from I’ve got it within 4 or 5 days.