MXT Extension, Tube Only. 12ga.

(3 customer reviews)


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Nordic Components MXT magazine extension tube.

  • MXT extension tube for changing magazine extension length and capacity
  • Available in variety of lengths, from +1 to +9 (shell capacity measured with 2 3/4″ shells and may vary with shells of differing length)
  • Features relief groove to eliminate barrel clamp travel and ensure repeatable placement after disassembly (+2 through +9 only)
  • Relief groove is not centered and can be relocated by reversing the tube (thread pitch the same on both ends)
  • Includes ONLY MXT tube
  • May require purchase of new magazine spring if you are changing the capacity of your existing extension

Attention Washington D.C. Residents: We will not ship any magazine tube extension or magazine extension tube component into Washington D.C. due to current regulations.

Additional information

Adds to your factory magazine capacity

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3 reviews for MXT Extension, Tube Only. 12ga.

  1. David Kirkwood (verified owner)

    I added the 4 round extension to the 8 round Nordic extension with coupler and hd spring, did not cut any off, for a total of 16 rounds in the magazine plus one in the chamber on my JM Pro. Works great! If I have one round in the mag there is not enough spring tension to push it out. When I am shooting the recoil must help it, I tried it many times shooting empty, it never failed to feed the last round. I am going to contact Nordic about this.

  2. Ryan (verified owner)

    Just got my +6 on my stoeger m3000 and ran it through a full 3 gun match with no issues what so ever. I was running the +7 but decided to take the capacity down a bit for loading purposes. +7 will just stick around for the m2 I want to get next.

  3. Ryan Bowman

    Can only get 8 2 3/4’’ rounds in the +6 tube extension for browning A5 (new one). I should be able to get 10. I kept trying to adjust spring thinking that was the problem and ended cuting the spring until it was so short the auto feature of Browning won’t work. That’s how I know the tube has to be too short. Now I’m going to have to buy a new kit and get the +8. Pretty disappointed it wasn’t as advertised. The quality is there but +6 should be +6.

    • Zach (verified owner)

      Hey Ryan — That’s the first we’ve heard of an issue there. The +6 tube is 14″ long, which is plenty of room for six additional shells. Mind shooting us over an e-mail through the contact form here on the site so we can get that resolved?

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