Good luck! Tyler T has sent me two grip adapters for my RB 2 1/2" 66-3. Neither one fit without a very noticeable gap between the trigger guard and the frame. I sent them both back. I expect better fit and quality for my money. I sent the last adapter in with a note to please get it right, or refund my money. Right now, I don't really care which way it goes. I've run out of patience with that outfit, and BK will likely be seeing my future business.