I can't speak for Ruger, but I recall them swapping a set of rings that came with one of my rifles for a set of a different height that I needed. I'd call Ruger's customer service department if I were you. Those rings aren't cheap, and it is a very reasonable request, IMO. Ruger has always treated me well, I think that they would do that for you. Their customer service number should be on their website. You probably will have to figure out whether to call Arizona or New Hampshire (different products= different locations) - but that info should be indicated on the website. Good luck - Merry Christmas.