Gen 2 SM9 MPX 35 Round Magazine

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The NEW 9mm  35 Round Generation 2 SM9 MPX Mag for the SIG SAUER MPX® by THRiL features stainless steel feed-lips and superior ergonomics, with an improved follower design and a stability rib on the rear spine. The refined design of this Generation 2 SM9 MPX Mag enhances reliability across a broad range of shooting conditions and ammunitions for the SIG SAUER MPX® and KM models.


  • Capacity : 35rds
  • Caliber : 9X19mm
  • Weight : 4.8 ounces
  • Developed for SIG MPX® Gen II
Features Generation 1 Generation 2
35 Round 9x19mm X X
Enhanced stack geometry X X
Stainless Steel Feed-lips X X
Superior ergonomics X X
Elastomeric strike plate X X
Stability rib on the rear spine   X
Improved follower design   X
Spring redesigned for more linear forces   X
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As a customer of Thril Inc., you may receive product for which export is controlled by International Traffic in Arms Regulations (ITAR). We want to ensure that you are aware of the requirements associated with these regulations. 
Please be aware that goods, technical data and/or services, provided to you, is subject to export control laws of the United States Government. Export, re-export or transfer, indirectly or directly of any of the aforementioned items by any means to a non-US person, whether in the United States or another country, without prior written approval from the US DDTC is strictly prohibited.
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Gen 2 SM9 MPX 35 Round Magazine

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  • 5
    MPX 9mm mag

    Posted by Rob on 13th Dec 2021

    Great magazine, no problems whatsoever!

  • 5
    Awesome magazines!

    Posted by Michael R on 7th Nov 2021

    Ordered these over the stock sig magazines and I couldn’t be happier. I personally think they look better and feel higher quality. Ran them through the paces (the 4 I purchased) and they all performed flawlessly. On here to buy more now. Awesome product Thril, thank you for making an affordable and dependable mpx mag!

  • 4
    Thril MPX magazines

    Posted by Joshua Espinosa on 27th Sep 2021

    I bought these the moment I saw them because they are a lot more affordable than the OEM mags from Sig. I tested them out the other day putting out about 100 rounds through each. I know that is not a lot but they ran just as good as the OEM mags. They have good grip, hold five more rounds, strings and durable, and have metal feed lips. I will be getting more for sure.

  • 5
    Gen 2 SM9 MPX 35 Round Magazine

    Posted by Thomas Croteau on 27th Aug 2021

    This product is exactly what was advertised.

    Thought out durable structure with a flawless rugged finish. I only loaded mine to 32 but they all ran flawless (mid grade ammunition).

    Thumbs up, I will be purchasing more.

  • 5

    Posted by Matthew K. Aubrey on 11th Aug 2021

    This magazine is awesome! Flawlessly fed over 200 rounds through my Gen 1 MPX with ZERO issues, and you can't beat the price!

  • 5
    Good work

    Posted by Bg63 on 31st Jul 2021

    Pro: Well made, easy loading no issues when shooting
    Con: Worked just as well as Sig mags except for not being able to see if any bullets were left in mag without removing the mag. Not a deal-breaker

  • 5
    MPX mags

    Posted by Joseph Romaine on 30th Jul 2021

    I've been waiting patiently for almost a year.
    Feels good , feeds good, looks awesome! One of the best aftermarket products for the Sig MPX in my opinion.

  • 5
    Best MPX mags I've purchased

    Posted by David C on 29th Jan 2021

    Purchased this mag in grey to test them out compared to the factory mags. This is the better mag! It has a very solid feel and is smoother loading. The texture is spot on and the fit and finish is fantastic. I also like the color options because now my subsonic loads go into the grey mags and standard velocity ammo goes in the black.

  • 5
    MPX mags

    Posted by Steve on 24th Dec 2020

    Work flawlessly in my MPX competition sig. and at a better price, I’ll be ordering more.