Janome Digitizer Pro Software more. My -74 Wingmaster only has a dating code on the barrel and no letter prefix in the serial number, just numbers. It has by the way not the same location on the receiver as a modern day 870 so it is hidden by the Mesa side saddle. Date of manufacture Remington 870 Wingmaster SN. From serial number on a Remington 870 wingmaster 20. The date of manufacture for Remington 870. (**) On 8/9/99, Remington stopped stamping the barrels with the date code. The date code was marked only on the end flap of the shipping box. Remington resumed stamping the date code on the barrel on 10/1/01. Only Remington can give an owner a DOM for a gun from this era, that carries no date code - via the gun's serial number.

Gun Manufacture Date. Remington Serial Number Lookup. Remington 870 Serial Number Lookup. Remington Year of Manufacture Codes maybe found on the barrel of.

  If it still has the original barrel look at the left side of the barrel back toward the receiver and get the date code - it will be a series of two letters or three lett ers - the first letter is the month represented by BLACKPOWDERX B being January and X being December. The next two or one letter represents the year of manufacture. 1950 is WW, 1951 is XX, 52 is YY, 53 is ZZ, 54 is A, 55 is B, 56 is C, 57 is D, 58 is E, 59 is F, 60 is G, 61 is H, 62 is J, 63 is K, 64 is L, 65 is M, 66 is N, 67 is P, and 1968 is R.

That is all that you should need because in 1968 Remington changed the serial number structure and added a letter to the front of the serial number.