Micheal is right. There is a step down from the receiver, which would line up the receiver with the rib just fine. I like quarter ribs, but the Simmons rib would look great too. Maybe MP would measure the butt height on the Owen Model 12 Remington. I believe that stock is oversize but in proportion. My little custom 61 has a 5" high butt and a hand filling grip and looks great also. Both the Owen Model 12 and my Model 61 were built with the small prewar type forend and look better than the long one.