stock knuckle lower, and a 4.5 barrel with integrated muzzle brake. The Sig MPX Copperhead K operates from a fully-closed and locked rotating bolt, offering enhanced reliability and safety in use. A short-stroke gas piston allows this 9mm Sig Sauer to run all weights and brands of 9mm ammunition with no adjustments to the gas valve.


This Sig MPX redefines the submachine gun category with a new level of operator safety, in-field adaptability and proven reliability in the harshest environments. It features dual-sided selector switch, magazine release, charging handle and bolt release.

FFL
FFL Address Required Yes
Shipping Class
Handgun Yes

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Sig Sauer MPX Copperhead K Pistol 9mm - Copper Custom Armament

  • Brand: Sig Sauer
  • Product Code: MPX Copperhead K
  • Rating:
  • Availability: In Stock

  • $1,999.99

Tags: Sig Sauer, MPX, Copperhead, K, Pistol, 9mm