Nordic Stoeger M3000/3500 12ga Nut

The Nordic Stoeger M3000/M3500 12ga Nut is a replacement magazine cap assembly engineered to enable installation of Nordic Components MXT extension tube kits on Stoeger M3000, M3500, and M3K shotguns. This specialized component replaces the factory magazine cap and serves as the mechanical interface between the receiver and the extension tube system, making it an essential part of any MXT upgrade package for these platforms.

The nut's compact design—measuring 4.25 x 1.5 x 9 inches and weighing only 0.13 lbs—allows for seamless integration without adding significant weight or bulk to the shotgun's forward end. By replacing the factory cap with this purpose-built interface, shooters gain the ability to attach Nordic's modular extension tubes, which extend magazine capacity and improve handling characteristics on the platform. Proper installation requires this component; the extension tube cannot function without it.

This nut is engineered specifically for the M3000/M3500/M3K platform and is not compatible with other shotgun models. Operators upgrading Stoeger inertia-driven shotguns for patrol, training, or duty applications depend on matched component systems; using the correct manufacturer-specified nut ensures reliable tube attachment and consistent performance. The nut is a wear item that may require replacement after extended use or if accidentally damaged during field maintenance.

For shooters building or upgrading Stoeger semi-automatic shotguns, this Nordic Components nut is a straightforward buy if adding an MXT extension. Verify your shotgun model matches the M3000/M3500/M3K specification before ordering to avoid compatibility issues. Stock this replacement nut alongside your extension tube kit to ensure you have all required hardware for a complete installation.