Sig Sauer MPX

The SIG Sauer MPX with a 16-inch barrel is a premier semi-automatic pistol-caliber carbine (PCC) designed for precision, reliability, and modularity. Chambered in 9mm, the MPX brings the familiar controls and feel of an AR-style platform while incorporating SIG’s advanced engineering and innovation.

At the heart of the MPX is a closed, fully locked short-stroke gas piston system—rare in PCCs—which delivers exceptional reliability and clean operation even under high round counts. The 16" barrel enhances accuracy and velocity, making this variant ideal for competition shooting, training, or home defense.

Equipped with a full-length M-LOK handguard, ambidextrous controls, and a telescoping or adjustable stock (depending on the model), the MPX offers outstanding ergonomics and user customization. It accepts proprietary SIG MPX magazines, providing smooth feeding and high capacity.

Whether you're on the range or setting up a home defense rig, the SIG MPX 16" carbine delivers rifle-like precision in a soft-shooting, highly controllable 9mm platform built to professional standards.