When I shoot at a clay Target, I don't aim or look at the rib. I am focusing on the target. But I still see the rib in my peripheral vision. And I know shooting a gun with no rib would just not work for me at all. And as I said I went there to buy a specific Model 21, but after thinking about it I thought I would wait until later to get one. So I didn't want to end up purchasing something that I would end up not liking.