My LCP.....started as a blued slide, but iwb holster + sweat = rust. So I cleaned it up, and sprayed it with stainless steel pigmented paint. The holster wear areas are smooth and don't rust anymore because I switched to ankle carry. All is good. It doesn't have to be pretty.....just reliable.
Pictured with a DeSantis IWB holster, but usually carry it in an Uncle Mikes ankle holster (which was not clean enough for a photo). Wow, gun and holster gets dusty/dirty down there close to the ground!
I'm still learning how to post pics, can't seem to get this one right