(*) On 8/9/99, stopped stamping the barrels with the date code. One needs to be sure that the barrel is original to the gun before trusting the Barrel Code listing, above. Using these barrel codes to date a shotgun is somewhat unreliable, as shotgun barrels are often interchanged at random. Using barrel codes (such as those listed above) to date the manufacture are reliable on Remington rifles, as the company rarely changed barrels on a customer's rifle. The following letters correspond to the months of the yearī - L - A - C - K - P - O - W - D - E - R - Xġ - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 Remington's manufactured after 1921 have a code located on the left side of the barrel near the frame that identifies the year and month of manufacture. Here is some information that you can get from you serial number after 1921
