Get your mind out the gutter..
A pair of Remingtons I stumbled across in my ventures, a kinda sorta 2 for one deal... A Nylon 66 and a Mohawk 10c, the first major attempt at plastic use in commercial production firearms. well, it musta worked, cause look the the world today. The Nylon 66 was made from '59 to '89, the Mohawk, descended from the Nylon 77, was made from '72 to '78. There are several variants and stock colors as well, a green and black version can be found. Seneca Green is the least common color, Apache Black is next, and Mohawk Brown is the most common color.
The Nylon 66 is very highly sought for the fact it has a 14 rd tube mag, which makes it desired in certain states due to being non-removable, the Mohawk has a 10rd removable magazine. As far as I can tell using Remington's dating method, the Nylon 66 is very early model, the barrel is stamped RF, Nov 1959, the Mohawk is PZ, mid production, June 1975. A relative who retired the local Dupont plant a few miles from where I live now, said that they made Nylon for a short time in the late 70's, they primarily made Lyrica, acetate flake, yarn process and Orlon, he said the plant gave employees one during Christmas one year in the early 1960's.
Now, giving out firearms for Christmas...is the least of their worries. https://www.epa.gov/hwcorrectiveaction/hazardous-waste-cleanup-dupont-waynesboro-currently-invista-inc-waynesboro-va
Nylon 66 barrel date code
Mohawk barrel date code
Nylon magazine tube in the butt stock, twist and pull
No serial on the Nylon due to age, the Mohawk has one.