This Remington manufactured magazine tube assembly is for the Nylon 66 semi-auto rimfire rifle and is in very good condition with a light tarnish on the brass tube section.  (file photo)

Note: Remington Nylon 66 rimfire rifles with the following date codes and/or serial numbers have been observed with this part: 2136810, 2339644, 2380815, 2467081, 2492224, A2182642, A2307685 & A2307966

N.S.N. : (LG) February 1960, (AG) March 1960, (WH) August 1960, (DH) January 1961,  (PJ) June 1962, (BK) January 1963, (RL) November 1964, (LM) February 1965, (LN) February 1966, (RN) November 1966, (CP) April 1967, (KR) May 1968, (CS) April 1969, (PS) June 1969, (OS) July 1969, (RT) November 1970, (AW) March 1972, (CW) April 1972, (AX) March 1973, (OX) July 1973, (LY) February 1974, (CY) April 1974, (EY) October 1974, (BZ) January 1975, (AZ) March 1975, (CZ) April 1975, (DZ) September 1975, (DI) September 1976, (XI) December 1976, (BO) January 1977, (EV) October 1979, (RV) November 1979, (LA) February 1980 & (CD) April 1983

(AZ) March 1975 Ser. # 2482446