This Remington manufactured unmarked open sight step is for the model 510 Targetmaster bolt action rimfire rifle and is in very good condition with light wear. (file photo)
Note: Remington model 510 Targetmaster rifles with the following date codes (month and year of manufacture) have been observed with this part:LJ February 1940, PJ (June 1940), EK (October 1941), LL (February 1942) & OL (July 1942).