I have 2 M11's one a 32" and the other a 30" full chokes both have solid ribs. They run fine as long as you keep them clean. All ways liked them and Browning A-5's. Don't mess with the choke find some older Federal shot shells before they had plastic wads or load your own with nitro cards and fiber wads with no shot protection you will get modified performance then. MB

" Cheapest velocity in the world comes from a long barrel and I sure do like them. MB "