SIG MPX COPPERHEAD PIST 9MM 4.

The SIG MPX redefines the submachine gun category with a new level of operator safety, in-field adaptability and proven reliability in harsh environments. The MPX Copperhead features a monolithic Elite Series Cerakote finish upper receiver, with an integrated stock knuckle lower, a Picatinny rail, and a 4.5" barrel with integrated muzzle brake. It comes equipped with the SIG SAUER Pivoting Contour Brace, giving pistol users a brace that easily adapts to the movement of the arm with a patented swivel operation and can be rapidly deployed. It features 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  9mm ammunition with no adjustments to the gas valve.

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