Uragan 30 cal thread adapter

I know this comes up every so often , I know eaglevision has a Vulcan adapter to 1/2 unf but it lists only up to 25 cal. I am being a bit of a stubborn ass because I have all my mods 1/2x20 I don’t like having different threads around because I will rotate mods every so often. Don’t need a cross thread. I plan on getting a Uragan in the future and I always use 30 cal mods. Ideas?