Quote Originally Posted by Rick the Librarianicon View Post
...2-groove barrels, if they exist, are rare....y.
20 years ago surplus JA 2 groove barrels were very common and cheap. I believe that Johnson Automatics made them as replacements. It would not be uncommon for them to show up on M1903 (both kinds) from a rebuild at any time. There are two in my safe I rebuilt in the '90's.