Finally got around to totally disassembling my P99c slide and cleaning it out. I've done my fullsize P99 1x this way. It's not as bad the 2nd time around.
The P99 is the only gun I know how to do this to, thanks to some vids from someone else.
Anyway - that CCI Blazer Aluminum is incredibly clean. Only thing in the slide was some fuzz that gets in thru the rear striker hole.