This Ruger manufactured third variation 18 1/2" long barrel is for the model 44 semi-auto carbine in 44 Magnum caliber and is in very good condition retaining most of its original blue finish with light wear. The bore is bright and rates excellent.  (file photo)

Markings: This barrel has the third variation markings which were offered after the company became incorprated and in 1976 specifically: "Sturm, Ruger & Co., Inc. / Southport, Conn. U.S.A." on the top and "Made in the 200th Year of American Liberty" on the left side.

Note: Ruger model 44 semi-auto carbines with the following serial numbers have been observed with this barrel: 102-23818