Off hand the only thing I can think of short of having the rib tapped where the square lugs mount rib to the barrel is to use one of the set of rings that are made to clamp on a 22 rifle and even that might not be strong enough to take the recoil TC has a set of girilla rings and base that is about the width of the rib. You might ask the TC answer man he should have the answer.
Deaconllb