Your gun sounds like the one I have, Ray. Typical for the 16 gauge skeet gun to have a solid rib. I have a Weaver screw in choke system on my 16 gauge, solid rib, skeet gun. But if you shoot skeet with this gun, you might find as I have that the Cutts is thought of as a pretty neat thing to have. Several of the people at my club have them on their Model 12s and people seem to like them.