This Marlin manufactured third variation 18" long barrel in 22 LR caliber is for the Glenfield model 70 semi-auto rifle; the barrel has a dovetail notch and and a front sight threaded hole which is for the third variation barrels. This barrel is in very good condition retaining most of its original blue finish with light wear and possibly a few specks of light surface rust. The bore is bright and rates excellent.  (file photos)