This Remington manufactured chrome finished cover screw is for the Apache Black/Chrome Nylon 66 semi-auto rimfire rifle and is in very good condition with light wear.  (file photo)

Note: Remington Nylon 66 rimfire rifles with the following date codes and/or serial numbers have been observed with this part: 2136810

N.S.N. (LM) February 1965, (DN) September 1966, (RN) November 1966, (CP) April 1967, (CY) April 1974, (EY) October 1974, & (DZ) September 1975.