Shockwave 30-Round ZMAG for M-11/NINE $36.95


The all-new metal 30-round Shockwave ZMAG for the Cobray M-11 (9mm and .380) is MADE IN AMERICA. Its design is head and shoulders above the competition. Some exclusive features include:

  • Mag stop is a go/no-go feature in our opinion. It prevents over-inserting a mag into your gun and bending your ejector rod, which can quickly ruin your day at the range.
  • Robust, high-reliability feedlips are designed for optimal ammunition feeding. If you have a feedramp that’s out of spec, resolve your feeding issues once and for all with the super-reliable ZMAG.
  • Anti-tilt, low-friction polymer follower ensures the utmost in reliability.
  • Wolff spring improves feeding reliability.
  • Compatibility with the factory Cobray loader and the Butler Creek Uplula lets you easily load your ZMAGs using these very handy loaders.
  • Works with all stock designs, including the factory folding stock.
  • Ammo witness holes on the left side of the ZMAG allow you to see remaining ammo at a glance.
  • Optimally placed mag catch.
  • Rugged black Cerakote finish will protect your ZMAGs for decades to come.

The Shockwave ZMAG fits and functions in all M-11 guns that originally shipped with the Zytel magazines:

  • SWD M-11/NINE Submachine Gun (9mm)
  • SWD SM-11/NINE Semi-Auto Pistol (9mm)
  • SWD SM-11/NINE Semi-Auto Carbine (9mm)
  • SWD M11-A1 Submachine Gun (.380)
  • SWD SM-12/380 Semi-Auto Pistol (.380)
  • LEINAD / FMJ PM-11/NINE AWB-Compliant Semi-Auto Pistol (9mm)
  • LEINAD CM-11/NINE AWB-Compliant Semi-Auto Carbine (9mm)
  • LEINAD TM-11/NINE AWB-Compliant Thompson-Style Semi-Auto Carbine (9mm)

Shipping is a reasonable $4.00.


  1. Rob Mull says:


    Thanks for putting out such great products.

    My question is: Can repair parts be ordered?



  2. George says:

    Iam looking to mac 11 9mm mags i keep reading that promags are not fitting without modified and sanding i just want a mag that will fit out of the box !? Will these fit out of the box??

    • marty says:

      Hello George,

      Thank you for writing. Yes, the ZMAGs will fit and function in your factory gun right out of the box. They are the BEST mags for the M-11/NINE. Full stop.

      Thank you,

  3. Mark says:

    I have a Stephensville MAC-10, it uses the zytel mags, do you know if your mags will work in my gun

  4. Wayne Meekins says:

    Iam in dire need for SWD M12 magazines. Do you sale anything for that gun

  5. Wes says:

    Is there any thought to introducing a magazine for the lage max31 upper?

  6. William says:

    Will this work with the MPA M11-9SA version of the M11?

  7. George says:

    Are the 50-round Cobray M-11 9mm mags still available? I understood that they would be availale in February ’15 but I do not see them on your website. Thanks!

    • marty says:

      We have caught up on our backorders and are now working our way through our wait list. It’s approximately 250 people long. So it might be a few months before we get to your name. I’d recommend emailing us at to get on the list as soon as possible.

      Thank you,

      • George says:

        O.K., thanks! 🙂

        • George says:

          BTW,… some websites that sell the Cobray M-11 mag loader state that it only works on the Zytel mags. Can you comment on that? I see you have a photo of one mounted on your M-11 ZMag and it appears to look like it works. Thanks again. 🙂

        • marty says:

          Hi George,

          Yes, the factory Cobray M-11 mag loader works perfectly with the ZMAGs.

          Thank you,

  8. jesus says:

    Will these mags work on an swd m12 380acp.

  9. Walt Null says:

    Ever think of making a Zmag for Intratec Tec-9, AB-10?

    • marty says:

      Hello Walk,

      I haven’t. The market’s not that big for the TEC-9–compared to the M11. And from what I know, the TEC-9 has a very reliable mag available for it.

      Thank you for writing,

  10. Randy says:

    1. Do these run good in M11/9s running Lage uppers?
    2. Any update on 50 round mags for the same SMG?

  11. Action says:

    Do your magazines fit/function in Masterpiece Arms semi-auto pistols???

    Thanks in advance!

    • marty says:

      I don’t know if MPA carries any pistols that use the zytel mags. I think most of theirs use the large, bulky Sten mags.

  12. David Vu Vu says:

    I am very interested in your magazines. I am military in active duty currently in NC. I am moving to California (sadly) and was wondering if you make 10 rd ZMags?


    • marty says:

      Hi David,

      We don’t currently offer a 10-round ZMAG. However, I do believe that California makes many exceptions to its draconian gun laws when it comes to active duty military stationed in that misguided state. You would need to look into that.

      Thank you for writing,

  13. MIKE says:

    Would you ever make a .380 mag for the M12 or M11 380?

  14. Tyler says:

    I was ready to sell my jam-o-matic 11 and figured after hundreds of dollars chasing down issue after issue, I’d try out your Zmags. I’m happy to report that I have since had zero malfunctions and Will be ordering more mags. I can finally enjoy my m11 thanks to you guys.

    • marty says:

      Hi Tyler,

      Glad to hear. Always happy to hear when the ZMAGs turn an owner’s perspective around on their guns. 🙂

      Thank you for the feedback,

  15. Hey guys do you make a 50 round mag for the M11 9 SWD?

  16. Odell Griffin says:

    I’d like to order 4 metal Shockwave 30-Round ZMAG for M-11/NINE.

  17. Duane says:

    Hello, I am interested in your Shockwave ZMAG for the Cobray M-11/Nine 9mm SMG. will you be at the upcoming Knob Creek? I am interested in a 6 pack at the least, possibly 2.

    • marty says:

      Hello Duane,

      Thank you for writing. We won’t be at Knob Creek. You can purchase the ZMAGs, however, here on our website, via GunBroker, or by phone at 801-815-5178.

      Thank you again,

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