The one I'm looking at describes it as nickel slide and frame finish and has black accents at the slide release and decocker,........so I'm guessing a nickelled 6904. I think he's listed a couple in the recent past. In fact, I'm sure I almost snagged one a week a two back for $270 Buy Now. I believe almost all of his pistols are re-imports from Israel and quite a few sport a nickel finish,......maybe popular there? Dunno.
If you're looking at the same gun/seller I think you are.