More fun stuff very easy to figure out Remington 870 Serial Number Lookup | Rem870.com Remington Year of Manufacture Codes maybe found on the barrel of your Remington rifle [or shotgun] on the left side, just forward of the receiver; the first letter of the Code is the month of manufacture, followed by one or two letters which are the year of manufacture. For shotguns with removeable barrels, the code will be valid for the manufacture of the barrel; maybe for the receiver, as barrels do get switched around.
The barrel make and the receiver make are often different. The gun started out in 1950 and it is called and "870" because the raw materials to make the gun cost $8.70.
