The Mossberg 500 12 gauge 24-inch slug barrel with rifle sights (brand part no. 90055) is a factory replacement barrel for the 12 gauge Mossberg 500 pump shotgun. Mossberg lists it as a cylinder bore slug barrel with adjustable rifle sights and a blued finish, so it turns a field or home-defense gun into a sighted slug gun without adding an optic. It fits the 12 gauge Mossberg 500 and the Maverick 88 6-shot, which makes it a simple swap between a slug configuration and another 12 gauge barrel on the same receiver. Mossberg notes that it is not directly compatible with the 500 Cruiser #54125 or the 500 Chainsaw #50460, so check your model before ordering. For a Mossberg 500 owner who wants a dedicated slug barrel with iron sights already fitted, this is the factory answer.

Key Specifications

• Chambered for 12 gauge on the Mossberg 500 platform.
• Barrel length is 24 inches.
• It is a slug barrel, Mossberg’s designation for a barrel built to shoot slugs.
• The bore is cylinder bore, so it is not a rifled barrel and takes no choke tube.
• It carries adjustable rifle sights for aiming at slug range without an optic.
• The finish is blued steel.
• It fits the 12 gauge Mossberg 500 pump shotgun.
• It also fits the Maverick 88 6-shot models.
• It is not directly compatible with the 500 Cruiser #54125 or the 500 Chainsaw #50460.

Frequently Asked Questions

Is this a rifled barrel? No. Mossberg lists it as a cylinder bore slug barrel with adjustable rifle sights, so it is a smooth-bore barrel and needs no choke tube.

Which shotguns does it fit? It fits the 12 gauge Mossberg 500 and Maverick 88 6-shot models. Mossberg says it is not directly compatible with the 500 Cruiser #54125 or 500 Chainsaw #50460.

Does it come with sights? Yes. It has adjustable rifle sights already on the barrel.

Buy the Mossberg 500 12 Gauge 24-Inch Slug Barrel with Rifle Sights, Blued

Add a dedicated, sighted slug barrel to a Mossberg 500 or Maverick 88 and swap it in whenever you want it. Browse more shotgun barrels and order from our Lubbock, Texas gun shop for direct shipping.