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The Nordic Components MXT +8 Extension Kit is a modular magazine extension designed to expand your shotgun's capacity by eight rounds with minimal fuss. Built from 6061 aircraft aluminum with a hard-coat anodized finish, it delivers superior strength and lasting corrosion resistance while keeping weight to a minimum so your shotgun stays balanced and manageable.
When used with 2.75-inch star-crimped shells, this extension adds a full eight rounds to your magazine tube. If you run 3-inch or 3.5-inch shells, expect slightly reduced capacity depending on shell length. The tube comes complete with a full-length replacement spring and cap, so you have everything needed for a functional extension once you attach the separate MXT extension tube nut.
The relief groove built into the MXT +8 eliminates barrel clamp travel and locks the extension in place after disassembly, meaning repeatable, consistent positioning every time you take the gun apart and put it back together. What makes this even better is that the groove isn't centered, allowing you to reverse the tube if you need to adjust where it sits without any tools. The tube has matching thread pitch on both ends, so you get real flexibility in how you set it up. This straightforward engineering saves you headaches during installation and maintenance.
Each kit includes the aluminum extension tube, a tube cap, and a full-length spring ready to go. The matte black finish integrates seamlessly with tactical and hunting setups alike. Keep in mind you'll need to purchase the appropriate MXT extension tube nut separately, as it attaches to your specific shotgun model—Benelli, Mossberg, Remington, and other platforms each have their own compatible nut.
No, the extension tube nut is sold separately and must be purchased based on your specific shotgun model. Nordic Components makes different nuts for Benelli, Mossberg, Remington, and other brands, so you'll need to identify which matches your gun before ordering.
Yes, it's compatible with both. However, since the eight-round capacity rating is measured with 2.75-inch star-crimped shells, longer shells will reduce how many fit in the tube. For 3-inch shells, you can usually load one fewer round, and for 3.5-inch shells, expect to lose capacity for even larger loads.
It depends on your specific shotgun. Most modern shotguns will accept it without major modification, but some platforms like Remington 870s have factory dimples in the magazine tube that may need removal. Some Benelli models and others with spring retention devices may also need attention. It's worth checking compatibility with your exact model before installing.
The off-center relief groove can be relocated by simply reversing the tube since the thread pitch is the same on both ends. No tools required for repositioning, making it flexible for different barrel clamp setups.
| UPC | 816696021522 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | MXT-TBS-12-8K |
| Caliber/Gauge | 12 Gauge |
| Color | Black |
| Model | |
| Product Type | Magazine Extension |
| Capacity | 8-Round |
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