SIG Sauer MPX K 9mm Pistol with Folding Brace

SIG Sauer MPX K: Compact Firepower Meets Tactical Innovation

The MPX K represents SIG Sauer's commitment to delivering a modern, modular platform for serious shooters who demand reliability without compromise. This 9mm pistol combines proven engineering with thoughtful design to create a firearm that adapts to your needs.

Operating System & Reliability

The MPX K employs a closed-bolt gas piston system—the same proven design philosophy that has earned respect across military and law enforcement communities. This operating system delivers:

• Ultra-reliable function across varied conditions
• Reduced recoil impulse for faster target reacquisition
• Easy maintenance and field stripping
• Suppressor-ready design with M13.5 x 1mm threads

The Folding Brace Advantage

The innovative SIG PCB folding brace is where the MPX K truly distinguishes itself. This isn't merely a gimmick—it's a practical solution:

• Folds to create an ultra-compact profile for vehicle storage or backpack carry
• Remains fully operable in the folded position
• Provides stable shooting platform when deployed
• Engineered for durability and repeatable function

Ergonomics & Modularity

• M-LOK handguard accepts modern tactical accessories
• Timney single-stage trigger delivers crisp, predictable breaks
• Polymer grip provides secure purchase in all conditions
• Cold hammer-forged barrel ensures accuracy and longevity

Specifications at a Glance

• Caliber: 9mm Luger
• Barrel: 4.5 inches
• Action: Semi-automatic
• Magazine: 30-round polymer (included)
• Weight: 5 pounds
• Overall Length: 22.25 inches
• Finish: Hard coat anodized

The MPX K is purpose-built for shooters who refuse to compromise between capability and practicality.