This Remington manufactured late variation one hole magazine lock mounts onto the inner recessed portion of the stock on the model 511 Scoremaster bolt action rimfire rifle and is in very good condition with light wear. (file photo)

Note: Firearms with the following date codes have been observed with this part: ATT (March 1948), PTT (June 1948), XTT (Dec. 1948), EUU (Oct. 1949), CWW (April 1950), EWW (October 1950), OYY (July 1952), WYY (Aug. 1952), BZZ (January 1953), KZZ (May 1953), ED (October 1957),  KE (May 1958) & XE (Dec. 1958).