Hey Rolan. Can be tough to ID DOB on some of the newer MR's. See attached PDF of Remington's Date Codes cryptography. Good until 2012. Yours could be newer. On the left side of your barrel, near the receiver, you should find two letters. Use the attached PDF to figure it out. First letter is the month & 2nd the year. I have many JM (North Haven, CT) 1894C Marlin's but also one perfect fit/finish/function MR (Ilion, NY) 1894C. For instance it's barrel is marked RF which would translate to R=Nov & F=2011.The serial number is MR505XXB
Can anyone out there help me with a manufacturing date/location?
I just picked it up in a trade with no box.