I have never seen an all stainless sight 66 with a red ramp. But, this means nothing, s&w may have very well made some. I have one with all stainless sights and while I wouldn't cut out the front sight to put a red ramp in, I would be tempted to replace the rear sight with black and put a little removable paint on the front. The all stainless sights are a good idea as far as revolver maintenance, but a terrible idea for actual shooting. I need some color