MPX is a new family of machine pistols. It uses SIG’s short-stroke piston gas system that offers reduced recoil and fouling. The closed, fully locked rotating bolt system provides a safety measure in case of bullet or water obstruction in the barrel.
MPX comes in a range of versions, the baseline weapon featuring an 8in barrel and three-position telescoping stock. There is a pistol variant, the MPX-P, without stock, and the MPX-K compact variant with a 4.5in barrel.
MPX-SD is an integrally suppressed version with an 8in ported barrel, while MPX-C is a carbine version with a permanently attached 8in carbon fibre extension. A range of accessories is available, including a folding stock, thread-on silencer for 9mm, and flip-up sights. The standard magazine holds 10/20 rounds, but an extended 30-round magazine is also available.
SIG Sauer’s P320 double-action striker pistol can be fitted with standard or carry length barrels and slides, full-length or shortened grips, standard or tabbed triggers and different magazines.