Bought a Bar-Sto .40 S&W barrel for my .357 Sig P-226 a couple years ago. The barrel did not fit, I returned it (and my Sig P-226) to Bar-Sto for fitting (no cost), and within a week had my pistol and the fitted .40 S&W barrel back. It is terrific: extremely accurate and beautifully machined. I recommend Bar-Sto highly and suggest you have them fit the barrel.