This Remington manufactured late variation bolt assembly features the three prong safety and is for the model 514 bolt action rimfire rifle. The overall condition is very good with light wear.  (file photo)

Note: Remington model 514 bolt action rimfire rifles with the following date codes (month and year of manufacture) have been observed with this part:

1955 thru 1960: CB (April 1955), RB (November 1955), LC (February 1956), CD (April 1957) & RE (Nov. 1958)

1961 Thru 1970: BJ (Jan. 1962), DK (Sept. 1963), OL (July 1964), AM (March 1965), BP (January 1967),  DS (Sept. 1969) & BT (January 1970 w/ Ser. # 2022781)