This Winchester manufactured 30" long barrel in 16 gauge with a 2 3/4" chamber, fixed factory full choke, and a bright bore that rates very good with light freckling is for the model 37 Steelbilt single barrel shotgun and is in very good condition exhibiting a mixture of thinning original blue finish (mostly in protected areas) with a brownish gray patina and having some scattered specks of surface rust. The front sight bead and complete extractor assembly are included. This barrel has the second variation barrel printing. (file photos)