Sig Sauer MPX-K Pistol (9mm) With Keymod Rail (4.5" Barrel) - Black

1 in stock


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 features a 4.5″ barrel and a short aluminum KeyMod handguard with handstop.

SB Tactical Pistol Stabilizing Brace Sold Separately (Click HERE to purchase the PSB)


Additional Information
Manufacturer Sig Sauer
Model MPX-K Pistol – Black
Type Pistol:  Semi-Auto
Caliber 9mm
Action Gas Operated Semi-Auto
Capacity 30+1
Sights No Sights
Barrel Length 4.5″
Overall Length 13.5″
Weight 4.6 lbs.
Accessories One 30-Rd Magazine (Gen2)
UPC: 798681563470
Manufacture Model MPX-K-9-KM

Additional Information Content

Modern Warriors

We started Modern Warriors for the sole purpose of providing a less expensive way to enjoy our love of buying and shooting some really cool stuff. What started as a hobby has turned into a business where we have developed the experience and ability to help you enjoy our same hobby and save you money in the process.

We specialize in tactical weapons, including suppressors, short barrel rifles and full auto weapons. We have routine experience in shooting the weapons we carry, so if you want our opinion on how a weapon operates, we will gladly provide it. We also have expertise working with licensed professionals in setting up gun trusts, which is an ideal way of purchasing, owning and operating any weapon restricted by the National Firearm Act. Don’t let the word “trust” scare you. It is very easy to set one up if you have the right help.

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