The Nordic Components MXT Magazine Extension Kit in +9 capacity gives your 12-gauge shotgun serious firepower without breaking the bank or swapping receivers. Whether you're running 3-gun matches, hunting waterfowl, or training hard, adding nine rounds of tube capacity transforms a standard shotgun into a competition- or duty-ready workhorse. This is a universal-fit extension system—the kit supplies the tube, spring, and end cap you need; you'll just need to source the correct extension tube nut for your specific shotgun model (sold separately).

Nordic Components engineered the MXT platform around real durability. The extension tube is machined from anodized 6061 aluminum, proven material that handles the abuse of repeated loading cycles while staying lightweight. The design includes a relief groove that prevents the barrel clamp from creeping after you disassemble and reassemble your shotgun—keep your extension in the same spot every time. That relief groove sits off-center, so you can reverse the tube to fine-tune fit on different gun profiles. Both ends are machined with matching thread pitch, giving you flexibility if your setup demands it.

Benelli M1 and M2 shooters take note: Nordic makes dedicated \"B\" models engineered for flush fit on those platforms (+3B on 18.5\" barrels, +5B on 21" barrels). If you run a different shotgun, verify the extension nut compatibility before ordering—that's the critical part that makes this kit work with your gun.

The Nordic Components MXT Magazine Extension Kit in +9 capacity gives your 12-gauge shotgun serious firepower without breaking the bank or swapping receivers. Whether you're running 3-gun matches, hunting waterfowl, or training hard, adding nine rounds of tube capacity transforms a standard shotgun into a competition- or duty-ready workhorse. This is a universal-fit extension system—the kit supplies the tube, spring, and end cap you need; you'll just need to source the correct extension tube nut for your specific shotgun model (sold separately).

Nordic Components engineered the MXT platform around real durability. The extension tube is machined from anodized 6061 aluminum, proven material that handles the abuse of repeated loading cycles while staying lightweight. The design includes a relief groove that prevents the barrel clamp from creeping after you disassemble and reassemble your shotgun—keep your extension in the same spot every time. That relief groove sits off-center, so you can reverse the tube to fine-tune fit on different gun profiles. Both ends are machined with matching thread pitch, giving you flexibility if your setup demands it.

Benelli M1 and M2 shooters take note: Nordic makes dedicated \"B\" models engineered for flush fit on those platforms (+3B on 18.5\" barrels, +5B on 21" barrels). If you run a different shotgun, verify the extension nut compatibility before ordering—that's the critical part that makes this kit work with your gun.