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Questions & Answers
Will the this extension +2 work on the SuperNova 12 ha. What nut do I need. Expert Answer

Yes, it will. You need this nut: 2OX-MZX-NCSG-M3000-12-00-1-0RD

by Tom B, Gear Expert, October 27, 2021
Compatible with Rem Tac-14? Expert Answer

Yes, as long as you purchase the correct, Remington 870, nut on this page: https://www.opticsplanet.com/nordic-components-shotgun-extension-tube-nut.html

by Armando R., Gear Expert, July 3, 2019
Customer Reviews
Helpful Positive Review
Kit - not tube only by Nate Marcotte, Verified Owner, June 23, 2017
This is a great extension setup, but note this is not the tube only. It is the kit with tube, spring & end cap. You need to order this, the forend adaptor & a clamp. I ordered the cap & spring separately based on this description, so now I have extra...
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15/15 found this helpful
Helpful Positive Review
Great product by Chad Bauer, Verified Owner, September 25, 2019
I bought the +4 extension kit and enhanced follower for my Beretta 1301 Comp. With the 24 inch barrel the +4 ends flush with the end of the muzzle. The installation of the kit was very easy. I did not need to use the included spring and cut it to siz...
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3/3 found this helpful
Helpful Positive Review
Give me more by Twenty plus one, Verified Owner, February 11, 2020
After much consideration I bout a +9. I liked it soooooo much. The only problem I ran into was my friend has the same tube but his stock tube holds one more. Giving him one up on me...not cool. What is cool is the fact I ordered a +8 and a coupler. M...
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2/5 found this helpful
Helpful Positive Review
Great product by Nigel152, Verified Owner, December 21, 2020
Nordic Components make great products and this is another great example. I put this on my Benelli Supernova and it looks great. The craftmanship ship and price cant be beat. Don't buy one of those cheap ext mags, just get one of these.
1/1 found this helpful
Helpful Positive Review
Solid Addition by TacticalTVC, Verified Owner, June 26, 2018
I put this on my Benelli SBE III which fit perfectly on. Construction is top notch and it looks really nice. I purchased the +7, when installed was about 1/2 inch shorter than the 28in barrel. I paired it with a clamp also from Nordic Components
3/3 found this helpful
Helpful Positive Review
Does exactly what it is supposed to by Geekmedic, Verified Owner, June 14, 2017
This extension doesn't change the world, or cure cancer, but it will give you another two rounds in the tube reliably. The stock tube and nut are easy to remove, and the Nordic Components tube comes with a spring that needs to be trimmed to the appr...
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2/2 found this helpful
Read All 25 Reviews
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Product Info for Nordic Components MXT Extension Kit, 12ga

Boost the capacity of your shotgun magazine by installing this Nordic Components MXT Extension Kit onto your 12-gauge firearm. These Shotgun Magazine Extensions crafted by Nordic Components are proven to increase the ammo capacity of your shotgun by one or two rounds, which can be crucial when you need that extra shot on a heated hunt. It also makes target practice a bit more fun. For optimal durability without much added weight, this Nordic Components 12ga Shotgun Extension Kit is constructed from anodized 6061 aluminum. The kit includes a relief groove that eliminates barrel clamp travel, allowing you to place it securely time and time again after disassembly. There's also a thread pitch on both ends which allows you to reverse the tube position, if needed. Enhance the abilities of your weapon by installing this Nordic Components MXT Shotgun Magazine Extension Kit. Please note that you need an MXT Extension Tube Nut to properly install this kit. It will not fit without this nut.image

Specifications for Nordic Components MXT Extension Kit, 12ga:

Manufacturer: Nordic Components
Color: Black
Finish: Anodized
Fabric/Material: 6061 Aluminum
Condition: New

Features of Nordic Components MXT Extension Kit, 12ga:

  • Anodized 6061 aluminum for strength and weight
  • Available in a variety of lengths providing capacity increases of +1 to +9
  • Features relief groove to eliminate barrel clamp travel and ensure repeatable placement after disassembly (+2 through +9 extensions only)
  • Relief groove located off-center to allow location adjustment by reversing the tube
  • Machined with matching thread pitch on both ends to allow reversing the tube

Package Contents:

  • Extension tube
  • Tube cap
  • Full-length spring

Nordic Components MXT Extension Kit, 12ga Orderable Models

List of Orderable Models

  • Nordic Components MXT Extension Kit, 12ga, 7 Shell Capacity, Black, MXT-TBS-12-7 , MPN: MXT-TBS-12-7 , UPC: 816696021515 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-7-7RD
  • Nordic Components MXT Extension Kit, 12ga, 2 Shell Capacity, Black, MXT-TBS-12-2 , MPN: MXT-TBS-12-2 , UPC: 816696021461 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-2-2RD
  • Nordic Components MXT Extension Kit, 12ga, 5 Shell Capacity, Black, MXT-TBS-12-5 , MPN: MXT-TBS-12-5 , UPC: 816696021492 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-5-5RD
  • Nordic Components MXT Extension Kit, 12ga, 4 Shell Capacity, Black, MXT-TBS-12-4K , MPN: MXT-TBS-12-4K , UPC: 816696021485 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-4K-4RD
  • Nordic Components MXT Extension Kit, 12ga, 3 Shell Capacity, Black, MXT-TBS-12-3K , MPN: MXT-TBS-12-3K , UPC: 816696021478 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-3K-3RD
  • Nordic Components MXT Extension Kit, 12ga, 9 Shell Capacity, Black, MXT-TBS-12-9 , MPN: MXT-TBS-12-9 , UPC: 816696021539 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-9-9RD
  • Nordic Components MXT Extension Kit, 12ga, 8 Shell Capacity, Black, MXT-TBS-12-8K , MPN: MXT-TBS-12-8K , UPC: 816696021522 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-8K-8RD
  • Nordic Components MXT Extension Kit, 12ga, 6 Shell Capacity, Black, MXT-TBS-12-6 , MPN: MXT-TBS-12-6 , UPC: 816696021508 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-6-6RD

Nordic Components MXT Extension Kit, 12ga Unavailable & Discontinued Models

List of Unorderable Models

  • Nordic Components MXT Extension Kit, 12ga, 1 Shell Capacity, Black, MXT-TBS-12-1K , MPN: MXT-TBS-12-1K , UPC: 816696021454 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-1K-1RD
  • USED Nordic Components MXT Extension Kit, 12ga, 5 Shell Capacity, Black, MXT-TBS-12-5, EDEMO2, Used, Condition Fair , MPN: MXT-TBS-12-5-EDEMO2 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-5-5RD-EDEMO2
  • USED Nordic Components MXT Extension Kit, 12ga, 4 Shell Capacity, Black, MXT-TBS-12-4K, EDEMO3, Used, Condition Like New , MPN: MXT-TBS-12-4K-EDEMO3 , Code: 2OX-MZX-NCMEXTBO-MXT-TBS-12-4K-4RD-EDEMO3
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