This is a factory replacement/extra barrel for the Mossberg 835 Ulti-Mag 12 gauge shotguns. It's a fully rifled bore barrel with integral cantilever scope mount. 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 90806 - 12 Gauge - 3-1/2 Chamber - 24 Length - Fully Rifled Bore - Integral Cantilever Scope Mount - Mossy Oak Break-Up Country Camo Finish - Fits: Mossberg 835 Ulti-Mag 12 Gauge