Heres my Gen2 G22 that I have given a sweet looking two tone look, Its my IPSC gun. I got the inspiration from the G22 which is in the back ground of the second pic.
The slide had what I was told was Duracoat on it, which I wasnt too fond of. So, after round 1 of rubbing it with both acetone and paint thinner and hitting it with a dremel powered wire brush(which didnt do a dang thing to the finish), and round 2 of soaking it in Jasco epoxy stripper for and hour and 45mins of scrubbing with a heavy duty scotch bright scrubber pad it turned out with a nice two tone look. And yes, I popped the sight off and the barrel was already polished by the previous owner who had it before the person I got it from.
What I started with.
After the hard work. Two Toning looks sweet I think.