Just picked up my latest purchase, after a 2 week wait for the BGC. It's a Dan Wesson model W12 with 2,4 and 6" barrels. It's in a case that may or may not be an original pistol pack case. 2 of the barrels have the recessed nut while one has the external nut, so I'm pretty sure this is a complete mixmaster. The case might be a repurposed clarinet case for all I know. No Standard Catalog for the Dan Wessons and other sources of info are scarce. I joined the Dan Wesson forum, but it's not near as busy as this one. Mechanically, it is in perfect shape and the finish is probably 98%+. The grips show use, but I'm looking into replacements. Needs the windage adjustment screw for the rear sight too. I know I paid too much, but I always wanted a barrel swapper! I might have to look for a 15" just for grins and giggles! If anybody has any more info, I'm all ears!