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Shotgun Parts Magazine Tube Parts Magazine Tube Extensions NORDIC COMPONENTS MXT EXTENSION KIT +3B 12GA Support

Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized 6061 aluminum, a flush fit for Benelli M1/M2, and adjustable relief grooves.

NORDIC COMPONENTS MXT EXTENSION KIT +3B 12GA

816696022420 100501040
Variations
Filters:
Variations:

Variations:

Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized 6061 aluminum, a flush fit for Benelli M1/M2, and adjustable relief grooves.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +3B 12GA
Not available
Capacity: 3-Round Gauge: 12 Gauge Product no.: 100501040
Not available
124.9 GBP 0 £124.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized 6061 aluminum, a flush fit for Benelli, and precision engineering.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +2 12GA
104.9 GBP 0 £104.90 *
Backorderable
Capacity: 2-Round Gauge: 12 Gauge Product no.: 100501032
Backorderable
104.9 GBP 0 £104.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precise fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +3 12GA
104.9 GBP 0 £104.90 *
Backorderable
Capacity: 3-Round Gauge: 12 Gauge Product no.: 100501033
Backorderable
104.9 GBP 0 £104.90 *
Enhance your 12ga shotgun's capacity with the Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum and a universal fit for various models.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +9 12GA
Not available
Capacity: 9-Round Gauge: 12 Gauge Product no.: 100501039
Not available
109.9 GBP 0 £109.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precise fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +7 12GA
Not available
Capacity: 7-Round Gauge: 12 Gauge Product no.: 100501037
Not available
109.9 GBP 3 £109.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized 6061 aluminum, a relief groove for stability, and a universal fit.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +1 12GA
Not available
Capacity: 1-Round Gauge: 12 Gauge Product no.: 100501031
Not available
79.9 GBP 0 £79.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized aluminum construction and a flush fit for Benelli M1/M2.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSTION KIT +5 12GA
Not available
Capacity: 5-Round Gauge: 12 Gauge Product no.: 100501035
Not available
109.9 GBP 5 £109.90 *
Extend your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized aluminum, a relief groove for stability, and a flush fit for Benelli M1/M2.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +7B 12GA
Not available
Capacity: 7-Round Gauge: 12 Gauge Product no.: 100501042
Not available
109.9 GBP 0 £109.90 *
Enhance your shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precision fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +8 12GA
Not available
Capacity: 8-Round Gauge: 12 Gauge Product no.: 100501038
Not available
109.9 GBP 3 £109.90 *
Extend your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, flush fit for Benelli, and adjustable relief grooves.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +6 12GA
Not available
Capacity: 6-Round Gauge: 12 Gauge Product no.: 100501036
Not available
109.9 GBP 3 £109.90 *
Extend your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precise fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +4 12GA
Not available
Capacity: 4-Round Gauge: 12 Gauge Product no.: 100501034
Not available
109.9 GBP 0 £109.90 *
104.9 104.9 11 GBP

Not available.

Product no.: 100501040

Mfr. No.: MXT-TBS-12-3BK

Notify on availability 124.9 GBP
104.9 104.9 11 GBP
Description Specification Customers reviews Accessories

NORDIC COMPONENTS MXT EXTENSION KIT +3B 12GA

Notify on availability

Description:

Enhance your shotgun's capacity with Nordic Components MXT Extension Tube Kits!

The Nordic Components MXT Extension Tube Kits offer a universal fit solution designed to extend the capacity of various 12ga shotguns. These kits are perfect for those looking to improve their firearm's performance and versatility.

Product Features:

  • Includes the tube in your selected additional capacity.
  • Comes with the correct length spring for the tube.
  • Includes an end cap for easy installation.
  • Compatible with "B" Models for a flush fit on Benelli M1/M2 (available in +3B for 18.5" barrel and +5B for 21" barrel).
  • Constructed from anodized 6061 aluminum for enhanced strength and reduced weight.
  • Features a relief groove to eliminate barrel clamp travel and ensure repeatable placement after disassembly (applicable for +2 through +9 extensions only).
  • Relief groove is off-center, allowing for location adjustment by reversing the tube.
  • Machined with matching thread pitch on both ends, facilitating tube reversal.

To complete your setup, make sure to purchase the correct Nordic Components Shotgun Extension Tube Nut that fits your shotgun, sold separately.

Click here to find the attachment nut for your firearm application.



Top takeaways

  1. Nordic Components MXT Extension Tube Kits universally fit various 12ga shotguns to extend their capacity, requiring a separate Extension Tube Nut for installation.
  2. The kit includes the chosen capacity extension tube, a correctly sized spring, and an end cap, with "B" models designed for a flush fit on specific Benelli shotguns.
  3. Features anodized 6061 aluminum for durability, a relief groove to prevent barrel clamp travel, and is machinable with threads on both ends for adjustability.

Attributes

  • Capacity: 
    3-Round
  • Gauge: 
    12 Gauge
  • Delivery weight: 0.125kg
  • Shipping height: 30mm
  • Shipping width: 159mm
  • Shipping length: 368mm
  • UPC: 816696022420

Item details

Made in USA
US export classification: 0A502

Customers reviews

Customer ratings (4)

4.8 / 5
Recommended

Brownells USA Must Swage the Magazine First on Tac-14 04/04/2018

Mag extension and Remington Nut from Nordic Components work well AFTER you swage or grind the dimples out of the end of the magazine tube. I used the 006-000-119WB Magazine Tube Detent Swage-Remington 12 Gauge from Brownells. I re-used the standard Remington Spring and so far so good. No feeding problems yet.



Should accommodate 6 standard 1/16" crimp 2 3/4" shells tightly in the magazine of a Tac-14 after dimple removal. I use the S&B 00 Buck which has a 7/32" crimp so I only get 5, but boy do they rip.

Definitely recommended

Brownells USA Fantastic quality at reasonable price 21/07/2017

If you're asking yourself, "Will it really be that much better than some of the cheaper alternatives?" the answer is, "Yes!" I put this +6 under a 28" Stoeger M3k and it fits perfectly (just shy of reaching muzzle). I have cheaper tubes on other guns that "get the job done" but have learned Nordic really is a cut above. Fit and finish perfect, spring is superior quality. Everything installed in minutes, runs like a champ without further adjustment. Super happy. [Buy the clamp too! Fits in tube's groove nicely to prevent sliding, very professional-- totally different league than other less expensive alternatives.]

Variations:

Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized 6061 aluminum, a flush fit for Benelli M1/M2, and adjustable relief grooves.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +3B 12GA
Not available
Capacity: 3-Round Gauge: 12 Gauge Product no.: 100501040
Not available
124.9 GBP 0 £124.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized 6061 aluminum, a flush fit for Benelli, and precision engineering.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +2 12GA
104.9 GBP 0 £104.90 *
Backorderable
Capacity: 2-Round Gauge: 12 Gauge Product no.: 100501032
Backorderable
104.9 GBP 0 £104.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precise fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +3 12GA
104.9 GBP 0 £104.90 *
Backorderable
Capacity: 3-Round Gauge: 12 Gauge Product no.: 100501033
Backorderable
104.9 GBP 0 £104.90 *
Enhance your 12ga shotgun's capacity with the Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum and a universal fit for various models.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +9 12GA
Not available
Capacity: 9-Round Gauge: 12 Gauge Product no.: 100501039
Not available
109.9 GBP 0 £109.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precise fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +7 12GA
Not available
Capacity: 7-Round Gauge: 12 Gauge Product no.: 100501037
Not available
109.9 GBP 3 £109.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized 6061 aluminum, a relief groove for stability, and a universal fit.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +1 12GA
Not available
Capacity: 1-Round Gauge: 12 Gauge Product no.: 100501031
Not available
79.9 GBP 0 £79.90 *
Enhance your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized aluminum construction and a flush fit for Benelli M1/M2.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSTION KIT +5 12GA
Not available
Capacity: 5-Round Gauge: 12 Gauge Product no.: 100501035
Not available
109.9 GBP 5 £109.90 *
Extend your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring anodized aluminum, a relief groove for stability, and a flush fit for Benelli M1/M2.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +7B 12GA
Not available
Capacity: 7-Round Gauge: 12 Gauge Product no.: 100501042
Not available
109.9 GBP 0 £109.90 *
Enhance your shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precision fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +8 12GA
Not available
Capacity: 8-Round Gauge: 12 Gauge Product no.: 100501038
Not available
109.9 GBP 3 £109.90 *
Extend your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, flush fit for Benelli, and adjustable relief grooves.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +6 12GA
Not available
Capacity: 6-Round Gauge: 12 Gauge Product no.: 100501036
Not available
109.9 GBP 3 £109.90 *
Extend your 12ga shotgun's capacity with Nordic Components MXT Extension Tube Kits, featuring durable anodized aluminum, precise fit, and easy installation.
MXT EXTENSION TUBE KITS 12 GA UNIVERSAL FIT - MXT EXTENSION KIT +4 12GA
Not available
Capacity: 4-Round Gauge: 12 Gauge Product no.: 100501034
Not available
109.9 GBP 0 £109.90 *

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