The Next Generation of Submachine Gun
Unconventional design. Unmatched performance. 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. There’s nothing else like it. And it’s only available from SIG.
Short-Stroke Piston System: Reduce recoil and fouling with the gas-operated, short-stroke piston system. The bolt is held open on the last round fired.
Rotating Bolt System: A fully locked and closed rotating bolt system provides maximum safety in case of bullet or water obstruction in the bore.
AR-Style, Ambidextrous Control: No retraining required. The SIG MPX features a familiar, AR-style ambidextrous selector and magazine release.
The MPX offers versatility through its modularity, allowing you to adapt it to fit your needs and environment.
Monolithic Upper Receiver: The monolithic upper receiver features an integral M1913 rail at 12 o’clock and a free-float barrel system.
Adjustable Barrel Length: Easily adapt to your environment with 4.5″, 6.5″ or 8″ barrel lengths.
Rail-Adaptable Handguards: Choose from rail-adaptable aluminum or carbon fiber handguards.
Stock Options: Maximize performance while conserving space with telescoping or folding stocks. Pistol configuration also available for the ultimate in compactness.
SIGTAC SBX Stabilizing Brace: Improve the single-handed shooting performance of your SIG MPX.
Thread-On SIG-SD suppressor: Maintain your cover with the ability to add a thread-on suppressor.
Rear Charging Handle: Does not interfere with rail-mounted accessories.