Did we completely forget the Colt style grip frames for Ruger single actions, Old and New Models, made by Power Custom???
but both use the same grips
Old and New XR3 grip frames do NOT use the same grips. The overall pattern is the same but the locator dowel is in a different location and New Model grips do not have the bevel at the top, inside corner. Either can be worked around but they do not interchange without modifications.