Ok, so I finally got a KWA USP that I was owed recently. Needless to say, the paint (whether it was factory or repainted), was crap. Overall poor finish and chipping off. So I sanded the slide down to the metal. The metal looks nice, but it didn't take the spray paint too well and is scraping off somewhat easily. Anyone have any ideas on how to fix this? I wanna get it to a nice, permanent flat black finish, and I doubt bluing would turn out well. Consider this a restoration project.