Brand new in stock now.  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. 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.

  • BARREL: 4.5"
  • OVERALL LENGTH: 22.3"
  • RATE-OF-TWIST: 1-in-10
  • CAPACITY: 20 + 1
  • # OF MAGAZINES: 1
  • MAG DESCRIPTION: 20 rd. Magazine
  • SIGHTS: No Sights / Optics Ready
  • SIGHT TYPE: None
  • THREAD PATTERN: 1/2x28
  • SPECIAL: Threaded Barrel Model
  • WEIGHT: 4.6 lbs
  • ADDL INFO: Timney Single Stage Trigger
  • ADDL INFO: One Piece Upper w/M-Lok
  • ADDL INFO: Ambidextrous Controls
  • MFG MODEL NO: PMPX-4B-CH-NB
  • 798681671779