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NOTICE: Due to a massive increase in orders, and a shortage of staff, some items on our website have been overselling due to late updating on inventory counts. When this happens, we will be giving priority to the orders that came in first, and we will refund the others. Additionally, order processing has been significantly delayed. We apologize for any inconvenience this may cause.

Sig Sauer


Product Code : 798681563487


Mfg Item #: MPX-K-9-KM-PSB

With unconventional design, unmatched performance, and familiar AR handling, Sig's MPX redefines the submachine gun category with a new level of operator safety, in-field adaptability, and proven reliability in the harshest environments. With ambidextrous controls, the MPX is great for left or right-handed shooters with its dual-sided selector switch, magazine release, charging handle, and bolt release. It 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. This model features a 4.5" barrel, telescoping, three-position Pistol Stabilizing Brace, and a short, aluminum key mod handguard with a handstop.

TypeAR Pistol
GripsBlack Polymer
SeriesK PSB
Caliber9mm luger
Case Type3-Position Telescoping Pistol Stabilizing Brace
Barrel Type22.5"
Barrel Length4.5"
Frame MaterialPolymer
Slide DescriptionBlack
Barrel Length Range4.00" to 4.99"
Sight ConfigurationNone, Optic Ready

Determined at checkout.