Wild West Gun Shop

Sig Sauer MPX K 4.5″ 9mm Black


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Sig MPX K 9mm

The choice of professionals worldwide, the MPX K offers a closed bolt gas piston system that is ultra reliable and durable. As with all MPX, the K is modular allowing for multiple handguard and barrel lengths and is ready to go for suppressor use. For 2019, the K now features the SIG PCB folding brace which allows the K to fold into an ultra-compact size and be operable in the folded position. The K also features an updated M-Lok handguard which is available as accessories in multiple lengths for suppressor coverage. Finally, the K is upgraded with the ultra smooth, ultra-fast Timney Trigger. Co-designed by Timney and SIG, this trigger offers the Timney performance you have come to expect we with the ultimate reliability to make it survive the punishment of a sub gun platform. If you are looking for the ultimate modular sub gun, look no further than the MPX K from SIG SAUER.


  • Improved Reliability and adaptability
  • Full Length Aluminum Keymod Handguard for mounting versatility
  • TIMNEY Single Stage Trigger
  • Cold Hammer Forged Carbon Steel Barrel
  • PCB Butt Stock (Coyote Finish)
  • Gas Piston System runs any 9mm ammo
  • 5/30 Round Magazine
  • Ambidextrous features
  • QD Sling Attachment point included
  • Rail Section for keymod included
  • Standard Sig Sauer Sling

**Please Note: Comes with Coyote Colored Buttstock (Picture #2)



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