If the purpose is to circumvent cosmetic semi auto rules or in a place that doesn't allow an AR rifle because of its evil features, there is a company that makes a pump action AR rifle. Not exactly what you mentioned but may serve what you intended. For me, I'd rather go to a lever action rifle in 44 mag. At 100 yards and in, it would be very effective and have capacity similar to those who must use neutered magazines and bullet buttons.