Scott, I don't have any.

by Hoot , Diversityville, Liberal-sota, Sunday, December 01, 2013, 12:20 (3953 days ago) @ Scott Ambler

If Matt doesn't come up with something, I can check with Dad and Bro' Dan (there's a "couple" of Rugers in this family).

If you can live without Ruger brand rings, there's a few others making them as well but I didn't do a real comprehensive search. Burris, Leupold and Millet, I think, all make a Ruger style ring.