I ordered the Red Ramp and White Outline from S&W back when they still offered the RR. I had to drill the pin hole for the front blade and completely replace the rear windage adjustment screw along with the WO, but it was well worth the effort. You can still get the WO, but not the RR. I am now looking for a gunsmith to do the RR on the left one that would look factory.
-Donn