I contacted S&W and asked if a .357Sig barrel was available for a .40SW MP40c. The answer was not at this time. Maybe some day.
But on the S&W site, the MP .357Sig compact is shown ( http://www.smith-wesson.com/webapp/wcs/sto...amp;isFirearm=Y ).
It would seem that if your ordered the .357Sig barrel, not shown on the S&W pistol parts list you would be able to drop it into a MP40c and fire .357Sig rounds. My 40c mags are stamped with both calibers so they would work.
What does Dr. Smith think? :roll:
But on the S&W site, the MP .357Sig compact is shown ( http://www.smith-wesson.com/webapp/wcs/sto...amp;isFirearm=Y ).
It would seem that if your ordered the .357Sig barrel, not shown on the S&W pistol parts list you would be able to drop it into a MP40c and fire .357Sig rounds. My 40c mags are stamped with both calibers so they would work.
What does Dr. Smith think? :roll: