I’ve taken mine apart to begin polishing the internals. Anything that’s showing wear marks will get a bit of polish and maybe stoned if there are a lot of tool marks. Right now, it’s been cleaned but I have not started to polish yet. I have what looks like a pile of brand new parts. The other nice thing about disassembly to this level is that you get to scrub out years of gunk and then reassemble like a new gun.