What is the manufacture date of a Remington Model 12C serial number 410621?
Starting in 1921, Remington rifles are dated by a 2 or 3 LETTER code stamped on the left side of the barrel, about a half inch from the receiver. Not by the serial number. Search for Remington Collector's Association Date Codes, and you will find the table to decipher the letters for month and year of manufacture. They are small- a magnifier and bright light will help
The serial number of Remington rifles will not give you the date of manufacture. The two or three letter code stamped on the base of the barrel will tell the year and usually also the month of manufacture. On a Remington 121 this letter code OS usually on the left side of the barrel right next to the front of the action. I have a 121 with the letter code "OF". This indicates that my…
They have date code stamps on the barrel which can be looked up on the manufacture date link on the Remington Society of America. --- Update: It's important to note that the barrel on the shotgun MAY not be the barrel that was originally on the shotgun at purchase. Check the serial number with Remington.