I just got off the phone w/ Paul from Colt Archives. My New Service is 100% correct. No barrel swap. It is a commercial USMC 1909 that was a private purchase by a Marine Corps Officer in 1909. Only two of these were known to exist....now three!! Mine went to Col. Charles L.F. Robinson. Col. Robinson was....wait for it....the president of Colt from 1911-1916!!!