These would be pretty cool if you could legally sell the machine pistol configuration.  I’ve never been really hot on semi-auto versions of submachine guns and machine pistols. Don’t know why, but I just kind of think you should get something for all that girth.
Via Unforgiving Minute, who also links to the included nifty foam lined carrying case.
Well, the extra weight could help with recoil…
I think someone should try making some “double barreled pistols”. Hit the bad guy with two bullets at the same time. It may be a ridiculous idea, but it also seems kind of cool. It should be in a movie.