k31 OBM scope system (includes k31 clamp on scope mount) | swissproductsusa

Looks like it's the same folks who made my right-of-bore mount, and it appears to use the same clamp-on system. I have found the clamp to be extremely easy to use, and it provides a rigid mount that doesn't shoot loose. I've taken it off and put it back on several times, and it hasn't damaged the finish yet, either.

It's biggest drawback has been the 3/8" dovetail for the rings, and they seem to have solved that with a modern rail on this one.