Remington Year of Manufacture Codes maybe found on the barrel of your 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.
The code will be valid for the manufacture of the barrel; maybe for the receiver - as barrels do get switched around.
Although the Model 1100 was first introduced in 1963 as a 12ga, the 20ga wasn't introduced until 1969.
Month Codes: [first letter]
B - L - A - C - K - P - O - W - D - E - R - X
1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12
Year:______Code: [second (and third*) letters]
1963_______ K
1964_______ L
1965_______ M
1966_______ N
1967_______ P
1968_______ R
1969_______ S
1970_______ T
1971_______ U
1972_______ W
1973_______ X
1974_______ Y
1975_______ Z
1976_______ I
1977_______ O
1978_______ Q
1979_______ V
1980_______ A
1981_______ B
1982_______ C
1983_______ D
1984_______ E
1985_______ F
1986_______ G
1987_______ H
1988_______ I
1989_______ J
1990_______ K
1991_______ L
1992_______ M
1993_______ N
1994_______ O
1995_______ P
1996_______ Q
1997_______ R
1998_______ S
1999_______ T
2000_______ U
2001_______ W
2002_______ X
As you can see, the years/letter codes start to duplicate, so it's best to already know the approximate era the gun in question is from.
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