Sig Sauer MPX-K-9-KM MPX 9mm 4 1/2" Barrel, 25 Round Magazine, Black

Unconventional design, unmatched performance, and familiar AR handling. The SIG MPX redefines the submachine gun category with a level of operator safety, in-field adaptability and proven reliability in the harshest environments. Completely ambidextrous, the SIG MPX is great for left- or right-handed shooters with its dual-sided selector switch, magazine release, charging handle and bolt release. The SIG MPX operates from a fully-closed and locked rotating bolt, offering enhanced reliability and safety in use. A short-stroke gas piston allows the SIG MPX to run all weights and brands of 9mm ammunition with no adjustments to the gas valve. A full-length picatinny rail allows for solid, consistent mounting of optics and targeting lasers. The MPX K features a 4.5" barrel and a short aluminum KeyMod handguard with handstop. Specifications: - Caliber: 9mm Luger - Barrel Length: 4.5" - Mags Included: (2) 25 Rounds Polymer Mag - Action Type: Semi-Auto - Barrel Material: Carbon Steel - Trigger Type: MIL-SPEC - Trigger Weight: 5.5-9.0 lb (24-40 N) - Twist Rate: 1:10 - Forend Type: Alloy - Grip Type: Polymer - Receiver Finish: Hard Coat Anodized - Overall Length: 13.5" - Overall Width: 2.4" - Height: 4.6" - Threads: M13.5 x 1 mm - Accessory Rail: KeyMod - Operating System: Gas Piston - Weight: 4.6 lbs. - Finish: Black