Sig Sauer MPX K 9mm Short-Stroke Gas Piston Pistol 4.5" PCC Folding Brace

Description:
MANUFACTURER: SIG SAUER 
MODEL: MPX K 
VARIANT / CONFIGURATION: PMPX-4B-9-NB PISTOL W/ FOLDING BRACE 
YEAR MANUFACTURED: 2023 
COUNTRY OF ORIGIN: UNITED STATES 
SERIAL NUMBER: 62H019713 
ROLLMARKS: SIG SAUER INC. NEWINGTON NH USA / SIG MPX MULTI-CAL. 
CALIBER: 9MM 
CAPACITY: 32+1 ROUNDS 
BARREL LENGTH: 4.50" 
BARREL FEATURES: NITRIDE, THREADED
MUZZLE / THREAD PITCH: FACTORY SIG SAUER MINI MUZZLE BRAKE / M13.5X1 LH
OPERATING SYSTEM: SHORT-STROKE GAS PISTON 
ACTION: SEMI-AUTO 
TWIST RATE: 1:10 
TRIGGER: TIMNEY SINGLE-STAGE FLAT TRIGGER 
WEIGHT (UNLOADED): 5.00 LBS 
CONFLICT ORIGIN: GWOT 
OPTICS READY: FULL-LENGTH PICATINNY TOP RAIL 
UPPER: ALUMINUM 
LOWER: POLYMER 
HANDGUARD / GRIP TYPE: ALUMINUM M-LOK HANDGUARD / SIG POLYMER PISTOL GRIP 
FIREARM FINISH: BLACK HARD-COAT ANODIZED 
CONDITION: VERY GOOD
ADDITIONAL FEATURES: FOLDING SIG BRACE, AMBIDEXTROUS CONTROLS, CLOSED-ROTATING BOLT, INTERCHANGEABLE BARREL SYSTEM 
UPC NUMBER: 798681671762 
WHAT’S INCLUDED: PISTOL, THREE (3) MAGAZINES, FACTORY BOX 

The Sig Sauer MPX K was built for one mission: deliver maximum capability in the smallest possible package. Whether staged for home defense, deployed from a vehicle, carried in a discreet bag, or run hard on the training range, the MPX K brings rifle-grade controls and handling to a compact 9mm platform. Its ultra-short 4.50-inch barrel and folding brace configuration make it exceptionally maneuverable while maintaining the speed, accuracy, and shootability serious shooters demand.

What separates the MPX from nearly every pistol-caliber platform on the market is its operating system. Rather than relying on simple blowback operation, Sig engineered the MPX around a short-stroke gas piston system paired with a rotating bolt. The result is a smoother recoil impulse, reduced internal wear, and exceptional reliability across a broad range of ammunition. Combined with the factory Timney flat trigger, this platform delivers fast follow-up shots, excellent control, and accuracy that punches well above what most shooters expect from a compact 9mm.

Ergonomics are pure Sig Sauer and immediately familiar to anyone with AR-pattern experience. Fully ambidextrous controls allow efficient operation from either shoulder. The compact M-LOK handguard provides excellent control without unnecessary bulk, and the balance of the firearm keeps transitions fast and natural whether running drills or working confined spaces.

Modern readiness is built into every inch of the MPX K. The full-length Picatinny rail is ready for red dots, magnifiers, or night vision-compatible optics. The M-LOK handguard accepts weapon lights, lasers, sling attachments, and mission-specific accessories, while the threaded muzzle makes suppressor use straightforward. Few platforms offer this level of modularity in such a compact footprint, which is exactly why the MPX has become one of the most respected tactical PCC designs of the modern era.

Trusted by professionals, sought after by enthusiasts, and respected throughout the tactical firearms world, the Sig MPX K continues to set the standard for compact defensive platforms. This example includes the desirable folding Sig brace, factory box, and three 32-round magazines, giving the next owner a complete package that is ready to hit the range, defend the home, or anchor a serious tactical loadout from day one.

***Please see pictures for condition and wear***

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PROCEDURES:
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DISCLAIMER
All pre-owned firearms offered by National Armory are thoroughly inspected by our on-site gunsmith to ensure they are in proper working condition. While test firing may or may not be conducted, all firearms are evaluated for basic function and safety. It is solely the buyer’s responsibility to be familiar with and comply with all federal, state, and local laws regarding firearm ownership and accessory restrictions, including but not limited to magazine capacity and prohibited features. All sales are final.

Handgun Caliber: 9x19mm Parabellum (9mm Luger, 9x19mm NATO)
Manufacturer: SIG SAUER
Model: MPX-K
Serial Number: 62H019713
Barrel Length: 4.50
Bore Info: STRONG
Condition: VERY GOOD
Metal Condition: VERY GOOD
Bore Condition: VERY GOOD
Manufacture Date: 2023

Price: $2,149.99
Shipping: $34.99
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