Why does your Remington nylon 66 not have a serial number?

Answer 1

My nylon 66 has no serial number, how do I find out what year it was made?

<><><><><>

Rifles and shotguns made prior to 1968 were not required by law to have a serial number. However, on the left side of the barrel, right at the receiver, you may find a 2 or 3 letter code. The Remington Collector Association website has a chart to decode the letters for the month and year that a rifle was made.