Hi fellows, I'm new here. I acquired a great set of grips, and find myself in need of a revolver to put them. The grips I have fit the long D frame, and they are round butt. I'm under the impression most of what I'd find out there to fit that bill are Police Positive Specials and Detective Specials, but I'd like a 6 inch barrel. Is there a model variation and vintage I should be looking for? I'm not to picky about the caliber. This will be my first Colt.