Well, Shiver me timbers. Back when this Wundergun was first announced, the whole world was drooling and slobbering wanting to get one. Then, there was the teeth gnashing whining because it was taking so long to materialize. Now that it's here, the general consensus seems to be the 380 is the "wrong" cartridge so let's make it something else and make the Mongrel into a Frankenpistol.
So how 'bout I gen up a pattern marked with a dotted line and "cut here" instructions. Might also be tempted to have a hardened guide clamp for a hacksaw made to keep the cut square and rent it out soz that ugly extra 3 inches of barrel can be removed with a square face. Since nobody can decide what cartridge it should really be, I' ll just have to wait before cook up a jig to turn cases in quantity.
Or, perhaps we should come to the conclusion, the final product is of no real use other than as an oddity. Really 'pensive paper weight. And, since we have progressed to a more or less paperless society, not much call for it there either. Not that I'm opinionated. Nah. Not real opinionated. Not me (Snicker Snicker Snort).
Oh wait. Bestest idea yet. Before you order one, send the check for the purchase price to ME. That way, at least one of us will be happy with yer espenditure