The Mossberg 92010 is a fully-rifled 20 gauge slug barrel purpose-built for hunters who want to transform their Mossberg 500 or Maverick 88 shotgun into a dedicated slug gun. At 24 inches, this barrel strikes the balance between maneuverability in tight cover and enough sight radius for accurate aim. The fully-rifled bore stabilizes saboted slugs for tighter groups downrange, making it a smart choice for whitetail hunters who need precision beyond what a smoothbore delivers. If you already own a Mossberg 500 or Maverick 88 with a 6-shot magazine tube, this barrel lets you keep your base gun in the truck or blind and swap to a serious slug setup when the opportunity demands it.

The cantilever mount sits atop the barrel, giving you a true optic-friendly platform without the need for gunsmithing or permanent modifications. The included 3-9x40mm scope arrives already integrated into that mount, so you can head to the range or field without hunting down a separate scope—it's a complete solution. The blued finish matches the weathered character of a workhorse shotgun and resists corrosion well enough for field use, though like any blued steel, it rewards regular cleaning and light oil.

Swapping barrels on a Mossberg 500 or Maverick 88 is straightforward: remove the foregrip, slide out the old barrel, slide in the new one, and reattach the grip. Within minutes you've got a slug gun. This is the kind of versatility that turns a jack-of-all-trades shotgun into a focused hunting tool without forcing you to buy a second firearm.

Key Features

• Fully-rifled 20 gauge bore for stabilized slug accuracy
• 24-inch barrel—compact enough for brush hunting, long enough for sight radius
• Cantilever mount for optic mounting without drilling or tapping
• 3-9x40mm scope included and mounted
• Blued finish
• Fits Mossberg 500 and Maverick 88 with 6-shot magazine tubes
• Quick-swap design—no tools required beyond a screwdriver for the foregrip

Specifications

Frequently Asked Questions

Will this barrel fit my Mossberg 500 or Maverick 88?

Yes, the Mossberg 92010 is designed for Mossberg 500 and Maverick 88 shotguns with 6-shot magazine tubes. Confirm your shotgun model before ordering. Barrel swaps on these platforms are straightforward and require no gunsmithing.

Do I need to buy a scope separately?

No. The 3-9x40mm scope is included and mounted to the cantilever rail, ready to use out of the box.

Why would I choose a rifled slug barrel over the smoothbore that came with my gun?

A fully-rifled bore stabilizes saboted slugs more effectively than a smoothbore, yielding tighter shot groups and better accuracy at distance. This is especially valuable for hunters pursuing medium-to-large game where precision matters or when taking longer shots.

Is this 20 gauge barrel compatible with a 12 gauge Mossberg?

No. This is a 20 gauge barrel and will only function on 20 gauge Mossberg 500 or Maverick 88 shotguns. Using the wrong gauge creates an unsafe condition and will not function.