I just picked up a model W12 dan wesson .357 with external barrel nut, In the original matching serial number box with all the goodies. I am not interested in value, I know I probably paid too much for it ($399), but rather how to get the 6 inch and 2 1/2 inch barrels for it. It has the original 4 inch barrel with pork chop shroud. I didn't know if any of you knew of a good source for them. I am monitoring *********, without much luck. I was hoping someone out there specialized in them or something. I want the 6 inch for sure, but probably will end up with the 2 1/2 too. Also, back to the gun, I have always wanted to pick one up, and this model was kind of different with the external barrel nut. The serial number is 23xx, so I am assuming it is an early production. I didn't know if these were more or less desirable than newer models. I am a collector, so the older the better for me.