My Cart

You have no items in your shopping cart.

60 Day Returns

No restocking fees See Details.

No-Hassle Guarantee

Best customer service See Details.

Ships from $4.99

On most items See Details.

Product was successfully added to your shopping cart.

Sig Sauer MPX 9mm 20-Round Magazine

Sig Sauer MPX 9mm 20-Round Magazine « »


Availability: In stock

Brand: Sig Sauer Magazines
Caliber: 9mm Luger
Capacity: 20-Round
Material: Polymer
  • Factory Magazine
  • For optimal performance select the same generation as your MPX
  • Gen 1 = Black follower
  • Gen 2 (KeyMod) = Green follower

* Required Fields

Shipping Restrictions

This is a factory 20-round magazine for 9mm MPX pistols & carbines.

Patterned after the venerable AR-15 and featuring a revolutionary new gas piston design, Sig Sauer’s MPX is the operator’s choice for 21st Century combat and competition.

These 20-round magazines provide the perfect balance of firepower and maneuverability, with a smaller profile that’s ideal for target shooting, moving around in vehicles, or just keeping reloads handy.

Factory magazines are built to Sig Sauer’s strict specifications, featuring reinforced feed lips and durable translucent polymer construction. Multiple capacities available.

Note: Generation 1 magazines will usually work in Generation 2 guns. But for optimal performance we strongly recommend purchasing the magazine that matches your gun. Just check an existing mag if you’re not sure (Black follower = Gen 1, Green follower = Gen 2).

subscribe today
Get exclusive offers
and early access to our best deals!