SIG SAUER Releases the Ultra-Compact MPX Copperhead

SIG SAUER Releases the Ultra-Compact MPX Copperhead
SIG SAUER Releases the Ultra-Compact MPX Copperhead

Newington, N.H.-( SIG SAUER, pleased to announce the newest addition to the SIG SAUER MPX series, the ultra-compact MPX Copperhead.

“The MPX Copperhead considerably reduces the length, width, and size of the MPX platform making it the most compact addition to the MPX family of firearms,” said Tom Taylor, Chief Marketing Officer and Executive Vice President, Commercial Sales, SIG SAUER, Inc. “The Copperhead is the perfect combination of the features and performance our consumers expect from a SIG MPX in a compact package.”

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 shooters arm with a patented swivel operation for perfect placement, and can be rapidly deployed.

MPX Copperhead:

  • Total length: 14.5”
  • Barrel length: 3.5”
  • Barrel Twist: 1:10”
  • Weight: 4.5lbs
  • Finish: Cerakote E190
  • Caliber: 9mm Luger
  • MSRP: $1835.00

The new SIG SAUER MPX Copperhead is now shipping.


SIG SAUER, Inc. is a leading provider and manufacturer of firearms, electro-optics, ammunition, airguns, suppressors, and training. For over 100 years SIG SAUER, Inc. has evolved, and thrived, by blending American ingenuity, German engineering, and Swiss precision. Today, SIG SAUER is synonymous with industry-leading quality and innovation which has made it the brand of choice amongst the U.S. Military, the global defense community, law enforcement, competitive shooters, hunters, and responsible citizens. Additionally, SIG SAUER is the premier provider of elite firearms instruction and tactical training at the SIG SAUER Academy – a world class, state-of-the-art, 140-acre training facility. SIG SAUER is headquartered in Newington, New Hampshire, and has more than 1,700 employees across eight locations, and is the largest member of a worldwide business group that includes SIG SAUER GmbH & Co. KG in Germany. For more information about the company and product line visit:

  • 15 thoughts on “SIG SAUER Releases the Ultra-Compact MPX Copperhead

      1. Anyone 21 and over can buy this you do not need a permit/license. Some people are hating on it saying why should a 9mm ever look like this but that’s the beauty of it. If this was an AR not considered a pistol you would need a licence because of the length of the gun being too small. I love it and wigh a scope on it I shoot bulls all day at 30 yards.

    1. What use is this firearm designed for? Self-defense in close quarters against 30 intruders? Close quarters combat generally? With a 3.5” barrel it can’t be accurate past about 20 yards, can it?

      1. Barrel length has nothing to do with accuracy and everything to do with velocity. Barrel twist, fitment tolerances and thickness of the barrel effect accuracy. The reason why most pistols arent as accurate is A. Because its hand held without a stock and B. Because the tilting Barrel mechanism requires tight tolerances in order to move the exact same way every time, tolerances only found in match grade barrels that are hand fitted.

    2. Well the Sig MPX or the CZ evo 3 S2 or the s1 with the mini cinversion. Wonder if Franklin Armory makes a binary trigger for each. Adding a nice compact suppressor for the final touch would hit the spot.

      1. I dunno man, looks more like Sig is the the new HK.. this doesn’t look much different then an MP5-K, except ya know, it is probably much easier to use, has bolt hold open on last round, an a bolt release that isn’t bass ackward.

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