This Remington manufactured open (rear) sight screw is for the early pre-grade model 552 Speedmaster semi-auto rimfire rifle when used with the pre-grade open rear sights. This screw is in very good condition with light wear. (file photo)
Note: Firearms with the following serial numbers have been observed with this part: N.S.N. (April 1957 & October 1965)
1464240 & 1713644
