This Remington manufactured late variation outer magazine tube with the cartridge shaped loading port is for the late model 512 bolt action rimfire rifle and is in very good condition exhibiting a mixture of original blue finish with a brown patina and light wear. (file photos)

Note: Remington model 512 Sportmaster bolt action rimfire rifles with the following date codes have been observed with this part: (CSS April 1947, (KSS) May 1947, (OSS) July 1947, (DSS) September 1947, (BTT) January 1948, (ATT) March 1948, (DXX) September 1951, (PZZ) June 1953, (LA) February 1954, (RB) November 1955, (PC) June 1956, (EF) October 1959, (XF) December 1959 & (PH) June 1961