Upgrade your shotgun’s slug performance with the Mossberg OEM 12 Gauge 24" Slug Barrel (91330)—a purpose-built barrel designed to deliver improved precision and confident sighting for dedicated slug applications. Featuring adjustable rifle sights, a cylinder bore optimized for slug use, and a durable matte blued finish, this 24-inch barrel is an excellent choice for hunters and shooters who want better aim control and consistent performance in slug-only environments. Built for use with the Remington 870 12 gauge platform (not compatible with Remington 12 gauge 3.5" Magnum models), the Mossberg 91330 (UPC 015813913300) is a practical upgrade for turning your 870 into a more capable slug-focused setup.
Purpose-Built for Slugs: Precision Features Where They Matter
Shotgun slugs demand more precise aiming than typical bead-sight bird setups. That’s why this barrel configuration centers on two critical features: a slug-friendly bore and true rifle-style sights. Together, they help you get a repeatable sight picture and better control of point of impact—especially useful for deer hunting, hog hunting (where legal), and any area where shotgun slugs are the preferred or required option.
Why a dedicated slug barrel makes a difference:
More precise sighting compared to basic bead setups
Better confidence when distances stretch beyond very close range
Consistent barrel configuration dedicated to slug performance
Ideal for hunters in slug-only zones or thick-cover terrain
If you’ve been using a general-purpose barrel for slugs, a dedicated slug barrel can feel like a major step up in control and confidence.
24" Barrel Length: Balanced Handling for Field Use
The 24-inch length is a proven sweet spot for slug hunting—long enough to provide a steady feel and stable aiming platform, while still remaining maneuverable in brush, blinds, and treestands. It’s a practical hunting length that supports smooth shouldering, controlled movement, and easy carry.
Benefits of a 24" slug barrel:
Balanced handling for woods, stands, and blinds
Stable feel for aimed shots and follow-through
Manageable length for thick cover and tight spaces
Great all-around configuration for hunting-focused use
For many shooters, 24 inches offers the “just right” mix of control and practicality.
Adjustable Rifle Sights: Zero Your Setup for Your Preferred Slug Load
This barrel includes adjustable rifle sights, allowing you to dial in windage and elevation to match your specific slug choice. Different slug loads can impact differently depending on brand, velocity, and your individual shotgun—so adjustability is a big advantage.
Why adjustable rifle sights matter:
Helps you fine-tune point of impact for your chosen load
Improves precision and repeatability compared to fixed beads
Better sight picture for careful shot placement
Ideal for hunters who confirm zero and want consistent results
For slug hunters, rifle sights are one of the most meaningful upgrades you can make.
Cylinder Bore: A Practical Choice for Slug Applications
With a cylinder bore, this barrel is configured for slug-focused use. Cylinder bore is a common choice for slug barrels, providing a consistent bore profile intended to support typical slug performance.
Why cylinder bore is popular for slugs:
Straightforward, consistent bore setup
Commonly used for slug-dedicated barrels
Practical for hunters and range shooters running slugs regularly
As always, it’s recommended to test your preferred ammunition to confirm accuracy and point of impact with your specific shotgun.
Matte Blued Finish: Low-Glare, Field-Ready Protection
The matte blued finish offers a classic look with a subdued, low-reflection surface that’s well-suited for hunting and outdoor use. Matte finishes are popular because they reduce glare in sunlight and help maintain a practical, “work-ready” appearance.
Matte blued finish advantages:
Low-glare look for field conditions
Classic finish style that pairs well with traditional shotguns
Practical durability with routine cleaning and light oiling
Complements many Remington 870 configurations
Designed for Remington 870 12 Gauge Compatibility
This barrel is specified for use with Remington 870 12 gauge shotguns, offering a slug-ready barrel option for one of the most widely used pump platforms ever made.
Important compatibility note:
Fitment matters with shotgun barrels, so confirming your specific 870 configuration (and ensuring it is not a 3.5" Magnum model) is essential before purchase.
Ideal for Deer Hunting, Slug-Only Zones, and Dedicated Slug Setups
This barrel is a great match for:
Deer hunting with slugs in timber or mixed terrain
Slug-only hunting zones where rifles may be restricted
Shooters building a dedicated slug configuration for an 870
Hunters who want adjustable sights for better point-of-impact control
Range shooters who want a consistent slug barrel for practice and tuning
If you want your Remington 870 to do more than bird and buckshot duty, a dedicated slug barrel expands capability in a big way.
Product Identification for Easy Ordering
To ensure you’re selecting the correct barrel, here are the key identifiers:
Brand: Mossberg (OEM)
Type: 12 Gauge 24" Slug Barrel
Sights: Adjustable Rifle Sights
Bore: Cylinder Bore
Finish: Matte Blued
Compatibility: Remington 870 12 Gauge
Not Compatible With: Remington 12 Gauge 3.5" Magnum model
Part Number: 91330
UPC: 015813913300
Why Choose the Mossberg OEM 24" Slug Barrel for Remington 870 (91330)?
If you want a slug-focused upgrade that improves aiming precision and supports confident field performance, the Mossberg OEM 12 Gauge 24" Slug Barrel (91330) is a strong choice. The adjustable rifle sights help you zero for your preferred slug load, the cylinder bore is configured for slug use, and the matte blued finish keeps the look low-glare and field-ready. Designed specifically for the Remington 870 12 gauge platform (and clearly noted as not compatible with 3.5" Magnum models), the 91330 (UPC 015813913300) is an excellent way to turn your 870 into a more capable slug hunting and range setup.
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