This Stevens manufactured 18" long barrel in .22 Long Rifle caliber is for the Maynard Junior single shot lever action rimfire rifle and is in good to about very good condition having been cleaned to a gun metal gray color with some scattered specks of rust and / or pin prick pitting.  This barrel includes the extractor. The front part of this barrel is round and 5 1/2" of the rear portion is octagon. (file photos)