Mossberg 90805 OEM 12 Gauge 24" Slug Barrel with Adjustable Rifle Sights, Fully-Rifled Bore & Matte Blued Finish for Mossberg 835 Ulti-Mag

If you own a Mossberg 835 Ulti-Mag and want to switch from waterfowl to slug hunting without buying a second shotgun, the Mossberg 90805 OEM 12 gauge 24" slug barrel gives you exactly that flexibility. This fully-rifled barrel is purpose-built for shooting rifled slugs accurately at distance—a serious upgrade over smooth-bore patterns when you're hunting deer or taking precision shots on steel. It comes fitted with adjustable rifle sights so you can zero for your load and hunting distance right out of the box, and the matte blued finish matches the rugged, no-nonsense character of your 835 Ulti-Mag.

Swapping barrels on a Mossberg 835 is straightforward, so you get genuine versatility: scattergun for birds and upland game one day, dedicated slug gun the next. The fully-rifled bore is the key difference here—those lands and grooves in the barrel impart spin on the projectile, stabilizing it in flight and tightening your groups compared to smoothbore slugs. If you shoot premium sabot slugs or solid slugs designed for rifled bores, you'll see measurable improvements in accuracy at 75+ yards.

This is genuine Mossberg OEM factory hardware, not an aftermarket knockoff. It's compatible specifically with the 835 Ulti-Mag platform, so measure twice before ordering and confirm your shotgun model. If precision slug hunting is in your future and you already run an 835, this barrel pays for itself the first season.

Key Features

• Fully-rifled bore optimizes accuracy with rifled and sabot slugs
• Adjustable rifle sights for field zeroing and point-of-aim adjustment
• 24" barrel length balances handling and velocity
• Matte blued finish resists corrosion in wet hunting conditions
• OEM Mossberg factory component—guaranteed fit on 835 Ulti-Mag
• Enables quick barrel swap for hunting versatility without purchasing a second firearm

Specifications

Frequently Asked Questions

What Mossberg shotguns is this barrel compatible with?

This barrel is designed specifically for the Mossberg 835 Ulti-Mag. Confirm your shotgun model before ordering to ensure proper fit.

Can I use this slug barrel for waterfowl or bird hunting?

While technically possible, this barrel is purpose-built for slugs. The fully-rifled bore is optimized for solid projectiles and sabot slugs, not shot patterns. Your 835 Ulti-Mag's original barrel or a smooth-bore barrel is better suited for waterfowl and upland game.

Do the adjustable rifle sights come zeroed?

The sights are factory-installed but you should verify zero at the range with your chosen slug load before hunting. Adjustable sights let you dial in your point of impact for distance and ammunition.

What types of slugs work best in a rifled bore?

This fully-rifled barrel is designed to shoot rifled slugs and sabot slugs. Check your ammunition packaging or manufacturer specs to confirm compatibility with your chosen load.