SIG MPX K PSB 9mm Luger Handgun

Item No. 79868156348

Add to cart options

Product Actions

  • Free Returns
  • SCHEELS Guarantee
  • Earn 5,699 Points with SCHEELS Visa Rewards

Additional Information

Product Description


Unconventional design, unmatched performance, and familiar AR handling. The SIG MPX redefines the submachine gun category with a new level of operator safety, in-field adaptability, and proven reliability in the harshest environments. Completely ambidextrous, the SIG MPX is great for left- or right-handed shooters with its dual-sided selector switch, magazine release, charging handle, and bolt release. The SIG MPX operates from a fully-closed and locked rotating bolt, offering enhanced reliability and safety in use. A short-stroke gas piston allows the SIG MPX to run all weights and brands of 9mm ammunition with no adjustments to the gas valve. A full-length picatinny rail allows for solid, consistent mounting of optics, and targeting lasers. The MPX K PSB features a 4.5" barrel, telescoping 3-position brace and a short aluminum KeyMod handguard with handstop.


  • Telescoping 3-Position Pistol Stabilizing Brace
  • Short Aluminum Handguard with Handstop
  • Ambidextrous AR-style Controls


  • Caliber: 9mm Luger
  • Barrel Length: 4.5"
  • Overall Length: 22.5"
  • Mags Included: (1) 30rd Polymer Mag
  • Mag Type: MPX
  • Stock Type: Telescoping 3-Position Brace
  • Barrel Material: Carbon Steel
  • Trigger Type: MIL-SPEC
  • Trigger Weight: 5.5-9.0 lb.
  • Twist Rate: 1:10
  • Forend Type: Alloy
  • Grip Type: Polymer
  • Receiver Finish: Hard Coat Anodized
  • Overall Width: 2.4"
  • Height: 8"
  • Threads: M13.5x1mm
  • Accessory Rail: KeyMod
  • Operating System: Gas Piston
  • Weight: 6.2 lbs.

Customer Reviews

There are no reviews for this item. Write Review