Well that is a cool idea, just not sure how practical for that kind of money (and I know Mike does good work). I assume the bottom bore is set off to the side of the top bore so that the centerfire firing pin will work. I guess you sight one barrel in and just use the old Kentucky windage method for the other barrel since it is at a different height and side to side to side distance from the sights. This is a good concept for a shotgun that throws a big pattern, not sure about the usefulness with a gun like this. Good novelty I guess.