


Since numbers can be polished off, especially on receiver extentions, a little harder on receivers, and reapplied. While I haven't seen every Md 12 ever made, none to my knoledge ever started with a 4 except those in the 400,000 S/N range which would have been 1925-1927 manufacturing years, and the barrel should be stamped NICKEL STEEL or STAINLESS STEEL. Now sometimes a " 1 " can look like an L especially on the one million guns that started with " 1 ". Now hamburger this question has come up before! What I can tell you is serial numbers for the US made Md 12s started with #1 in 1912 and ended in the 2,026,500 range in 1985 with the last special run of "Y" Md 12s known as the Jaquae order to USRA. People are only trying to help the original poster out!! Myself as Moderator I really have to try hard at times and choose my words carefully, as to not offend anyone!! We all have our own opinions as to "what's good information and what's bad information!! The point is if you feel someone has used a reference that's not as accurrate as it could be, please feel free to post a better reference.

Hello hamburger and everyone else: Well first off as Moderator, I'll remind everyone, the forum is a place to exchange information, what we've learned, from personal experiences, to what has been written and published, from original factory literature, to various authors.
