Mossberg 90055 500 12 Gauge Shotgun - 24" Blued Adjustable

The Mossberg 90055 is a 24-inch slug barrel built for hunters and shooters who want to convert their Mossberg 500 or Maverick 88 shotgun into a dedicated rifled-sight slug gun. This barrel swap transforms your existing shotgun into a more precise, longer-range platform without buying an entirely new firearm. The blued finish matches the classic Mossberg aesthetic, and the adjustable rifle sights give you a simple, reliable way to dial in your aim for deer and elk hunting where slugs make sense.

Slug barrels trade the versatility of shot for superior accuracy and range, and this 24-inch option gives you enough sight radius and barrel length to group tightly at distance. The cylinder bore choke delivers consistent patterns with rifled slugs, making it a straightforward choice for hunters who want better performance than a smoothbore slug load can deliver. If your hunting grounds require precision rifle-like shooting but you prefer a shotgun platform, this barrel is a cost-effective upgrade path.

Installation is a simple two-minute barrel swap on compatible 500 and Maverick 88 receivers—no gunsmith required. Just note that this barrel is not compatible with the 500 Cruiser or 500 Chainsaw models, so verify your shotgun's exact configuration before ordering. Works only with the 6-shot magazine tube setup found on standard 500 and Maverick 88 models.

Key Features

• 24-inch rifled-sight slug barrel for extended range and accuracy
• Adjustable rifle sights for precise aiming
• Cylinder bore choke optimized for slug performance
• Blued finish
• Drop-in barrel swap—no tools or gunsmithing required
• Compatible with Mossberg 500 and Maverick 88 6-shot models

Specifications

Frequently Asked Questions

Which Mossberg shotguns does this barrel fit?

The Mossberg 90055 barrel is compatible with Mossberg 500 and Maverick 88 shotguns equipped with 6-shot magazine tubes. It is not compatible with 500 Cruiser or 500 Chainsaw models.

What is a slug barrel and why would I need one?

A slug barrel is optimized for firing single, large-diameter projectiles (slugs) instead of shot pellets, delivering superior accuracy and range. Hunters use slug barrels when they need precision on bigger game like deer or elk, especially in areas where rifles are restricted.

Do I need a gunsmith to install this barrel?

No. The barrel installs via a simple two-minute swap on compatible receivers using no tools. Just remove your existing barrel and slide this one on.

Can I use this barrel for hunting?

Yes. The 24-inch length and adjustable rifle sights make it well-suited for slug hunting at moderate ranges. Always verify your local hunting regulations before use.