Factory new model 1100 barrel, 21" with Rifle sights and Fully Rifled bore. Blue finish not Black oxide or matte but blued like the Wingmaster shotguns. This part F243192 on the Remington parts list and retails for $304.98
Great price and I only have two. Price will go up come fall as this price is an off season price.
Remember fully rifled barrels like this are for Sabot Slugs only and not for rifled slugs or buckshot.