Good afternoon! This is my first post on here, and of course it's a question. I just picked up a Model 99 (S/N 574xxx) from a friend. I think it's an "R" (Correct me if I'm wrong) in .300 Savage. It has a Redfield tang sight with a broken elevation screw (snapped off in the middle of the threaded section), which I'm looking to replace with a flip-up sight on the barrel since it has what looks like a dovetail sight mount machined in. The problem is, I can't find either sight for the R designation. Does anyone have any suggestions for where to find either parts for the Redfield, a replacement tang sight, or a "barrel mounted" sight for the R? Any help would be GREATLY appreciated. Thanks!