Posted by David Williamson on March 5, 2019, 12:17 pm, in reply to "1947LC Smith "
Possibly, the 1947 barrels will have what they called Single Sighting Plane, meaning the rib is higher. The 1923 will not have this and is possible that when fitted the extension rib will be lower in the receiver of the FWS gun. Naturally the other barrels will have to be from a FW gun and not a Regular frame.