After the adoption of the SIG Sauer M17/M18 pistol platform as the U.S. Army sidearm, the military requested a number of additional SIG guns for an unspecified purpose.
Building on the popularity of pistol-caliber carbines, SIG Sauer announced an enhanced version of its popular MPX platform, providing an option designed for competition use.
Laid out over a 5-year period, the U.S. Army Contracting Command intends to purchase $13.4 million worth of SIG Sauer firearms, optics and accessories.