This Ruger manufactured third variation 5 1/2" long blue finished barrel is for the early new model Single Six single action revolver with an adjustable style rear sight and is in very good condition retaining the majority of its original blue finish with some thinning from holster wear and honest use. The bore is bright and rates excellent.  (file photo)

Markings: This barrel has the earlier markings on top: Sturm, Ruger & Co., Inc. / Southport, Conn. U.S.A. without the warning present.

Note: Firearms with the following serial numbers have been observed with this part: 62-46367