This Remington manufactured 22" long round barrel is for the model 12 slide action rimfire rifle in 22 S, L & LR caliber and is in good condition exhibiting a grayish brown patina with some scattered light dings and a dark bore having some pitting present. The rear sight dovetail measures 2 1/2" ahead of the receiver and is designed for the shorter length more common rear sight assembly. (file photo)

Note: Remington model 12 slide action rimfire rifles with the following serial numbers have been observed with this part: 

12-A: 741138 & 806842