Nordic Components +9 MXT Shotgun Magazine Extension Tube Kit – 12 Gauge
Not Yet Rated | Write the First Review SKU: 222-NOR-MXT-TBS-12-9
UPC: 816696000000

Nordic Components +9 MXT Shotgun Magazine Extension Tube Kit – 12 Gauge

Maximum Capacity. Match-Grade Engineering. Mission-Ready Reliability.

When your mission demands more rounds on tap, the Nordic Components +9 MXT Extension Tube Kit delivers unmatched magazine capacity and proven reliability for your 12-gauge shotgun. Built for competition, tactical use, and serious defensive setups, this kit increases your mag tube capacity by up to 9 rounds of 2.75" shells, giving you an immediate edge where it counts.

CNC-machined from anodized 6061 aluminum, the MXT +9 is lightweight, rugged, and modular. It includes a full-length spring, end cap, and precision-fit tube to extend your magazine’s effectiveness—when paired with a Nordic MXT Extension Nut (sold separately).

Key Features

• +9 Round Capacity Upgrade
  Increases your shotgun’s magazine capacity by nine 2.75" shells. For use with 3" or 3.5" shells, subtract one or two rounds, respectively.

• Precision-Machined 6061-T6 Aluminum
  Durable, lightweight, and hardcoat anodized for high performance in the harshest conditions.

• Complete Kit
  Includes extension tube, end cap, and full-length magazine spring. (Note: +1 kits feature an integrated cap.)

• Modular Reversible Design
  Matching thread pitch on both ends allows tube reversal. Relief groove prevents barrel clamp movement and enables repeatable placement after field stripping.

• Optimized for Customization
  Relief groove is off-centered to allow fine tuning by simply rotating the tube orientation—ideal for competitive and tactical builds.

• Compatible with Nordic Components MXT Extension Nuts
  This extension tube will not mount without the correct MXT nut, sold separately and specific to your shotgun’s make/model.

Compatibility & Installation Notes

• Compatible with most 12-gauge shotguns when used with the appropriate Nordic MXT Extension Nut

• Commonly installed on: Remington 870, Mossberg 500/590, Benelli M2, Stoeger M3000, and others

• Shotguns with factory magazine dimples or spring retention devices may require modification for full function

• Always verify MXT Fit Guide to match extension length with your shotgun’s barrel and application

Product Specifications

Built For:

• 3-Gun and IPSC competition shotguns

• High-capacity tactical and law enforcement setups

• Shotgun upgrades for defensive or patrol roles

• Hunters and sport shooters looking for fast reloads and extended firepower

Why Choose the Nordic Components +9 MXT Extension?

Because nine extra shells can make all the difference. Trusted by top competitors and tactical operators, the MXT +9 extension kit is engineered to deliver exceptional feeding reliability, custom-fit modularity, and lightweight strength—without compromise. If your shotgun is your lifeline, this extension is your best upgrade.