FirstSpear TV

SIG SAUER Ultra-Compact MPX Copperhead Now Shipping

NEWINGTON, N.H., (March 20, 2019) –SIG SAUER, Inc. is pleased to announce the ultra-compact MPX Copperhead is now shipping and available in retail stores.


The SIG MPX Copperhead redefines the sub-gun category with a new level of operator safety, in-field adaptability and proven reliability in the harshest environments with unconventional design, unmatched performance, and familiar AR handling. 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.

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, rapid deploy 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.



15 Responses to “SIG SAUER Ultra-Compact MPX Copperhead Now Shipping”

  1. Amish says:

    Not a fan of the pistol-grip, or the rushed design.

  2. Scott says:

    Now shipping? I saw one in a store early January.

  3. TominVA says:

    $1,579.99 at Buds in semi-auto. So the question I have is why? If you can’t have it in full auto, where’s the advantage or even the fun in owning this?

    • Stash says:

      You support a full turn-in AWB that would make this illegal to own.

      You are not the decider of fun. No one needs to justify their ownership of firearms to you.

      “Stop liking what I don’t like.” – your post, translated.

      • TominVA says:

        Stash, if I were the the decider of fun I wouldn’t have asked the question.

        AWB issues aside, I enjoy shooting. I might even be tempted to buy a full auto version of this. That really would be fun. But semi-auto? I have that now in a much more affordable format.

        What’s the appeal of a semi-auto subgun that isn’t “really” a subgun?

    • Robert Wheeler says:

      The stupid is strong with this one.

  4. Drew says:

    I don’t like the look of it at all… the look of the mpx version better….now if the mpx was made smaller like this then i would be all over it for $1500.00+

  5. mark says:

    the problem is, with such a short barrel the operator is not getting an advantage over a pistol, except for the brace, and there are options for that with a pistol also. the solid top w/o a reciprocating slide (and rmr) is nice, but not that nice at that price. i’d more more tempted to go with a flux brace and a new glock, or a sig p320 and fire control unit.

  6. Jack says:

    Not even considering it since the rocket doctors at SIG didn’t thread the damn barrel.

    Seriously- what possible excuse could they have? Big miss here guys. Big miss.

  7. Adrian DiBenedetto says:

    I absolutely love my Sig MPX I purchased about 18 months ago but I have no interest in this one. Just doesn’t do it for me. The original is perfect as far as I’m concerned. Sure it will have a fan base but not like the original MPX.