I have made molds and have cast both black and ivory grip adapters for Colt Detective Special revolvers. Presumably these will fit other "D" frame models, but I only have a Detective Special, and so can only speak first-hand to that fit.

My test gun is an older "long grip frame" model, on which these adapters fit just fine. Someone else has checked and confirmed that the second clip clears the grips on the newer, "short grip frame" models. So this adapter should be good on all of the Colt "D" frames.

Same materials, same price, same shipping, same service as the BK Grips adapters that I've made for (almost) 5 years for S&W revolvers. So you know what you're getting.