Sig Sauer MPX Copperhead 9mm Flat Dark Earth Pistol with Pivoting Contour Brace


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The MPX Copperhead features a monolithic Elite Series Cerakote® finish upper receiver, with an integrated stock knuckle lower, and a 3.5” barrel with integrated muzzle brake. The MPX Copperhead comes equipped with the new SIG SAUER Pivoting Contour Brace (PCB) giving pistol users a brace that easily adapts to the movement of the shooter’s arm with a patented swivel operation for perfect placement, and can be rapidly deployed.

Unconventional design, unmatched performance, and familiar AR handling. The SIG MPX redefines the submachine gun category with a new 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.

Firearm Features

  • Monolithic Upper Receiver
  • 3.5″ Barrel with Integrated Flash Hider
  • 2-Position Pistol Contour Brace

Firearm Specifications

  • Manufacturer: Sig Sauer
  • Model: MPX Copperhead
  • Caliber: 9mm Luger
  • Barrel Length: 3.5″
  • Overall Length: 14.5″
  • Height: 8″
  • Width: 2.4″
  • Twist Rate: 1:10
  • Weight: 4.5 lbs.
  • Operating System: Gas Piston
  • Stock Type: PCB (Pivoting Contour Brace)
  • Trigger Type: Single Stage; Polished/Hard-Coat
  • Receiver Finish: Cerakote
  • Barrel Material: Carbon Steel
  • Magazine: (1) 20-Round Magazine

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