SIG Sauer MPX 9mm Magazine - 20 Round

Manufactured by Sig Sauer
Manufactured by Sig Sauer
2 Reviews

Out of Stock

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Magazines considered High Capacity are controlled by the ATF and/or local jurisdictions are not available for purchase/shipment in all areas.



The Sig Sauer MPX 9mm 20-Round Magazine is a reliable and durable factory original part. It is a 20-round magazine designed specifically for the Sig MPX chambered in 9mm. It is compatible with Generation II MPX or KM models. This Sig magazine is constructed to endure heavy use with a durable polymer construction by Lancer. The magazine offers steel internal springs for reliable cycling offering the dependability and quality you expect from Sig Sauer. These 20-round magazines provide the perfect balance of firepower and functionality with a smaller profile that is ideal for target shooting, improved mobility or for keeping extra rounds on hand. These magazines adhere to Sig Sauer’s specifications featuring reinforced feed lips and durable translucent polymer construction. This MPX 20-round magazine is the same quality and standards as the factory original meaning a secure fit, good cycling and an easy drop from the mag well, ensuring you get optimal reliability and performance.

  • Manufactured by Sig Sauer
  • Compatible with Generation II MPX or KM models.
  • 9mm
  • 20 round magazine
  • Polymer construction

Sig Sauer is a world-renowned firearms manufacturer with a rich history of innovation and design leadership. No other firearms manufacturer is so highly regarded and so universally respected for the quality, reliability, and safety of its products. Since 1864 they have expanded their product line to include suppressors, optics, ammo, and airguns to provide customers with a greater range of firearms and equipment.
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BrandSig Sauer
Magazine Capacity20
PlatformSIG Sauer Magazines
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

2 reviews

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20rd MPX K Mags

by -

Great price , great quality, best of customer service can't ask for more!

Awesome Mag

by -

Very please with the magazine sig makes a good magazine for my MPX. Primary arms had it in stock Im a law enforcement officer and Primary arms are my go too when in need for magazines and other equipment.