This Remington manufactured first variation pre-grade 25" long (overall length) barrel is for the early model 552 Speedmaster semi-auto rimfire rifle which uses the open leaf rear sight and dovetail mounted front sight. This barrel is in very good condition retaining most of its original blue finish with light wear. (file photos)

Note: Firearms with the following serial numbers have been observed with this part: N.S.N. (April 1957 & October 1965) & 1464240, 1713644