The new SIG MPX Copperhead comes with a 30-round mag and other upgrades.

SIG Sauer released the SIG Copperhead earlier in 2019 to much fanfare. So it’s no surprise that variants of the firearm are on the way. Well, SIG just announced the first variant, a special edition of the ultra-compact MPX Copperhead.

The new SIG MPX Copperhead, available through Bill Hicks distribution, includes a suppressor-ready barrel with A2 flash hider, 30-round capacity and full-black finish.

SIG Sauer MPX Copperhead Special Edition Details

The MPX Copperhead delivers in-field adaptability, high performance and familiar AR-style handling and controls. Completely ambidextrous, the MPX Copperhead accommodates both left- and right-handed shooters. As such, it comes with a dual-sided selector switch, magazine release, charging handle and bolt release. The MPX Copperhead operates from a fully closed and locked rotating bolt, offering enhanced reliability and safety in use. Meanwhile, a short-stroke gas piston allows the sub-gun to run all weights and brands of 9mm ammunition with no adjustments to the gas valve.

The MPX Copperhead also features a monolithic Elite Series black anodized finish upper receiver. The 3.5-inch barrel comes threaded suppressor-ready with an A2 flash hider. Lastly, two-position pistol brace, PDW pistol grip, single-stage trigger and 30-round polymer magazine round out the package.

We should also mention that SIG just announced its P365 SAS. It’s a snag-free concealed carry handgun with sights embedded into the slide. Our friends at have the exclusive first look. For more information on either product, visit

MPX Copperhead Specs

  • Total Length: 14.5 inches
  • Barrel Length: 3.5 inches
  • Barrel Twist: 1:10
  • Weight: 4.5 pounds
  • Finish: Black Anodized
  • Caliber: 9mm Luger

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