This is a factory replacement/extra barrel for the Mossberg 835 Ulti-Mag 12 gauge shotguns. It's a smooth cylinder bore barrel with adjustable rifle sights for fantastic accuracy. This is the barrel you need to turn your bird gun into a deer harvesting machine. Get into the field and hunting with a Mossberg Slug Barrel! - Mossberg 835 Ulti-Mag Slug Barrel 90804 - 12 Gauge - 3-1/2 Chamber - 24 Length - Smooth Bore - Adjustable Rifle Sights - Matte Blued - Weight 2 Pounds 8 Ounces - Fits: Mossberg 835 Ulti-Mag 12 Gauge