This Remington manufactured second variation alloy open (rear) sight leaf is for the early pre-grade model 572 Fieldmaster slide action rimfire rifle which uses the shorter height dovetail mounted front sight and was manufactured in the late 1950's through the mid 1970's. This piece is in very good condition retaining most of its original factory finish with some light wear.  (file photo)

Note: Remington model 572 Fieldmaster rimfire rifles with the following serial numbers and / or date codes (month and year of manufacture) have been observed with this part:

Dates: CM (April 1965), RN (November 1966), XU (Dec. 1971), DX (September 1973 Ser. # 1752987) & BY (January 1974 Ser # 1775306)

Ser. #'s: 1651124, & 1767489