The Sig Sauer MPX Copperhead K is a compact and effective PDW semi- automatic pistol with a 4.5" threaded barrel chambered in 9mm. The Copperhead K  features a monolithic upper receiver, with an integrated stock knuckle lower and uses a fully-closed and locked rotating bolt, for enhanced reliability and safety. The MPX has proven it's reliability in the harshest environments thanks to a short-stroke gas piston system that runs clean and eats all weights and brands of 9mm ammunition with no adjustments to the gas valve. Ambidextrous AR like safety selector, magazine release, bolt release and charging handles make the Copperhead easy to operate and lefty friendly. A full length Picatinny rail and M-Lok slots provide ample room for your choice of optics, weapon lights and accessories. The Copperhead K is equipped with a SIG SAUER Pivoting Contour Brace (PCB) that can can be rapidly deployed and gives pistol users a brace that easily adapts to the movement of the shooter's arm with a patented swivel operation for perfect placement. A Timney single stage trigger provides a light, crisp trigger for extreme accuracy and fast follow up shots.

One piece aluminum upper with Picatinny rail and M-LOK compatible slots provide room for your accessories.