I would have thought that was a SNL skit - a joke - but apparently it is not.

Why would you want a "revolver cylinder" that holds one each of many calibers? The cylinder appears to be the barrel too, otherwise it wouldn't work. What's the advantage of a "cylinder" that holds one each of .45auto, .40s&w, 9mm, .38special, .380auto, and .22lr? Plus, that "cylinder" is really big! Same things goes for their other "cylinders" that hold rifle cartridges (ignoring for the moment that a rifle cartridge fired from a six inch cylinder/barrel will be significantly neutered - oh, but what a glorious muzzle flash and recoil you'd have!)