Thread: 26mm Rings?

An easy option is to go to Aliexpress and buy any 30mm rings that also comes with 25.4mm plastic inserts. it will not look as streamlined but works without any additional effort.

I have a 1950s 26mm Kollmorgen Bear Cub Rifle scope that is in such a set up. I got the scope on a rifle that was made in about 1965.

Having said that, its previous owner had it mounted in a set of 25.4mm rings for more than 50 years and it did not seem to hurt it. i still got these rings too. clearly the wrong size (1inch).