Nordic Components Mossberg 12Ga Nut, Black (NUT-MB-12-00)

The Nordic Components Mossberg 12Ga nut is a precision aluminum component designed to secure magazine extensions to your shotgun's magazine tube. If you're upgrading your Mossberg 12-gauge with an extended mag capacity for hunting or sport shooting, this nut is the critical interface that holds everything together. Machined from aluminum billet and finished in matte black anodizing, it's built to handle the repeated cycles and stress of extended shooting without loosening or failing.

This is a replacement or spare part for shooters who already own a Nordic Components extension or are planning to install one on their Mossberg. The matte black finish blends seamlessly with modern tactical or hunting setups and resists corrosion in the field. Because it's a direct-fit component for the Mossberg platform, compatibility is straightforward—as long as you're pairing it with a Nordic Components extension tube designed for your shotgun.

Whether you're building out a competition gun, a home-defense shotgun with extra rounds on tap, or a hunting platform that benefits from faster reloads, having a quality tube nut you can trust matters. This is the kind of small part that doesn't get noticed until it's the wrong one—so ordering the correct Nordic Components nut for your Mossberg 12-gauge setup ensures your extension stays locked down shot after shot.

Key Features

• Aluminum billet construction for durability and light weight
• Matte black anodized finish resists corrosion and blends with modern shotgun setups
• Direct fit for Mossberg 12-gauge magazine tubes
• Secures Nordic Components extension tubes for reliable retention

Specifications

Frequently Asked Questions

Will this nut fit my Mossberg 12-gauge shotgun?

Yes, this nut is designed as a direct fit for Mossberg 12-gauge magazine tubes and is used to attach Nordic Components extension tubes to your shotgun.

What is this nut used for?

This nut secures a Nordic Components magazine extension tube to your Mossberg's magazine tube. It's the fastening component that holds the extension in place.

Is this a replacement part or does it come with an extension tube?

This is the nut only—a replacement or spare part. You will need to purchase a compatible Nordic Components extension tube separately to use with it.

What finish does it have?

The nut is machined from aluminum billet and anodized in matte black, which resists corrosion and matches modern tactical and hunting shotgun finishes.