Hello everyone, new to this site and to old model Rugers. I recently piced up an old model single six serial #187145. It has the XR3-RED grip frame which I believe isn't correct based on what i have been reading here and that i have another just like it that has XR3 grip frame. Is it in any way possible that it would have been shipped with the XR3-RED frame? I plan on making it correct if it isn't and if i can find the right parts. Where would i start looking for an XR3 frame and what should I expect to pay for one? I'll try to attach a picture. It's the bottom gun. Thanks, Joe