I just bought a new .40 Cal Compact and part of the selling point was that I could change the barrel to fire .357 SIG rounds. Now I cant find a barrel anywhere. The gun shop where I purchased it called S&W and they said its not Avail... (didnt know how to take that, I know they sell a Compact .357 SIG gun so S&W has the barrels) I've tried Brownells, Midway USA and Storm Lake Barrels. Suggestions? Any help would be greatly appreciated.