Got an email from Eric Kovacic of EFW Arms. Sound like his company will soon be making some of the long barrels and shrouds soon, I only asked him about for the Dan Wesson 15-2 .357 Mags, though.
Thanks for getting in touch, and sorry for the delay in getting back with you! Currently I am coming out with the longer shrouds. I am shooting to have available some 15" barrel assemblies in about a month. I got you down on the list to let you know when available. Thanks again!
E.W. Kovachic Technologies
Eric Kovachic
210 South Park Street
Richmond, OH 43944
http://www.ewkarms.comHe does have the 10", 12", and 15" barrels in stock right now, just no shrouds. So if you have the shrouds, but a damaged or missing barrel, you can get one.