If it doesn't have this code, it was made between 19.
If yours is between 19, it should have two letters, one for month, and one for year. Introduction Year:1909 Year Discontinued:1936 Remingtons manufactured between 19 have a code located on the left side of the barrel near the frame that identifies the year and month of manufacture. Remington Arms can help you via customer support: How can tell how old my Remington firearm is. Remington's manufactured after 1921 have a code located on the. Here is some information that you can get from you serial number after 1921. He soon had a large number of orders for gun barrels. 1955 Remington (U.S.) 40X Bolt-Action Small Caliber Target Rifle.