SIG MPX COPPERHEAD REVIEW [2023]: FUN BUT WORTH IT?

Name: sig sauer mpx copperhead
SKU: 5116
Price: 1700.00 USD
Availability: InStock

Sig Sauer MPX Copperhead is the most compact pro-grade sub-caliber carbine available. With its ultra-compact and lightweight design, this little 9mm PDW is easy to carry and a ton of fun to shoot…which leads us nicely into our full SIG MPX Copperhead review!

Sig Sauer MPX Copperhead

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SIG MPX SPECS

Host PlatformSig
Caliber9mm
MagazinesMPX
Weight4.5 lbs
Capacity20 rounds

What Is The Sig Sauer MPX Copperhead?

So, how did the Copperhead come to be? There are a few theories surrounding this weapon.

One is that it was custom designed from customer input looking for a lower-cost version of Sig’s MPX. And a version that had more features, but didn’t lose the MPX’s closed rotating bolt design.

Another is that the Copperhead was created specifically for the US Army and its Sub Compact Weapon program. Whether that’s entirely true or not is speculation, but the Copperhead has already received numerous government contracts since its debut at the 2019 SHOT Show in Las Vegas.

Sig Sauer MPX Copperhead Features

1RAPID DEPLOY PCB BRACE

When fully extended, this brace rotates to allow the user the ability to contour with the pistol itself.

220 ROUND MAGAZINE

The Copperhead’s reduced magazine only adds to its conceal ability and deployability.

3INTEGRATED FLASH HIDER

With the Copperhead’s integrated flash hider, the crown of the barrel is protected and the overall length is kept short.

4ULTRA-SHORT INTEGRATED 3 1/2 INCH BARREL

This barrel is designed for maximum deployment in all situations.

Sig Sauer MPX Copperhead Review-Our Takes

At first glance, the MPX Copperhead is a beautifully designed weapon. It really is a head-turner with its sleek, yet simple profile and custom Cerakote finish. But don’t let its simplicity fool you. The Copperhead is packed full of awesome and useful features.

SIG continues its trend of putting its customers and clients first with their MPX standard ambidextrous controls.

This may seem trivial, but using controls that are natural to your body make all the difference–especially in a high-action scenario. We wish that some of these ambi-controls were on our Sig MCX Rattler (ahem…Sig).

Although the Copperhead has been swapped to a monolithic upper, that doesn’t mean that you can’t use your fair share of attachments. The Copperhead ships with a full-length Picatinny rail (as requested by the US Army) making sure that you can utilize any sights or optics devices you choose. There’s also a three-slot Picatinny on the rear of the weapon allowing for the use of various sling or stock attachments. And that can definitely come in handy.

One of the nicest features to come with the Copperhead is the collapsable brace integrated into the receiver. The SIG PCB (Pivoting Contour Brace) allows the shooter to really get down on the sights and maneuver around to a better target.

At first, we really weren’t sure about the pivoting brace. Up until now, pistol braces were fixed (as far as the rotation goes) and we weren’t sure if the new rotating brace would be a benefit or a hindrance. According to Sig, the pivoting stock adjusts to your arm position so you can take full advantage of Sig Sauer MPX Copperhead-Pistol Gun Universitysights/optic on the Copperhead.

Sig is right. If you’ve ever used a standard pistol brace as it was intended (most people don’t), you’ve likely noticed that the pistol is canted so much that it makes aiming awkward. Sig’s new rotating brace fixes this and allows for aiming without having to fully straighten nor lock your arm.

Now, let’s talk about that barrel. The Sig Sauer MPX Copperhead comes standard with a 3 1/2 inch barrel. This is yet another tactic employed by Sig to maintain peak deployability.

But there’s one thing about it that I’m not so keen on the barrel’s flash-hider is permanent with no threads. That means no suppressor or barrel attachments.

This is my only real gripe with the MPX Copperhead. One of the main reasons for a sub-calibered “not-a-rifle” is to be able to shoot with a silencer. If you agree, then the standard Sig MPX might be for you. Or… you can swap the barrel with any other MPX barrel to get the threads you desire

Although I don’t like it, I do understand where Sig was going with this. The permanent flash hider cuts down on cost and weight while keeping the overall length small enough to fit into a backpack (which would not be possible with a silencer attached).

But how about the weapon as a whole? How does it stand up to serious use?

When it boils down to it… The Copperhead proves itself more than capable. The Copperhead is a BLAST to shoot and if you’re looking for the smallest 9mm carbine that is also professional-grade, the Sig Copperhead may be for you.

One final note, I’m a bigger guy (with an even bigger head) and the extremely small size of the Copperhead made it a little difficult to shoot well. I prefer the standard MPX, but that’s only because I’m not looking for the smallest package. If you are, the Copperhead is for you.

SIG SAUER MPX COPPERHEAD

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 MPX Copperhead 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.

HOW TO CARE FOR YOUR SIG SAUER MPX COPPERHEAD

To keep your firearm lasting and fully functioning, keep it clean and maintain it. The Sig Sauer MPX Copperhead is an outstanding firearm, so it’s important to take care of it. To help you do this, here is a video on breaking it down.

If you’d like to get started cleaning your gun, here is our recommended cleaning kit for the Sig Sauer MPX Copperhead:

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.

Specification

Mag Type	MPX
Barrel Length	3.5 in (89 mm)
Caliber	9mm Luger
Height	8 in [203 mm]
Overall Length	14.5 in [368 mm]
Overall Width	2.4 in [61 mm]
Twist Rate	1:10
Weight	4.5 lb (2 kg)
Operating System	Gas Piston

The Sig Sauer MPX Copperhead PST 9mm Handgun offers smooth handling and unmatched performance. The MPX Copperhead features a Pivoting Contour Brace (PCB) that rapidly deploys to provide added stability.

An integrated muzzle brake on this Sig Sauer MPX Copperhead handgun provides improved recoil mitigation, while the rotating bolt ensures reliable power and precision. This tactical 9mm is fully ambidextrous, featuring a dual-sided selector switch, mag release, charging handle, and bolt release.

A short-stroke gas piston on the Sig Sauer MPX Copperhead offers optimal accuracy and performance with all weights of 9mm ammo without the need for user-end adjustment. With an M1913 rail for mounting optics, the Sig Sauer MPX Copperhead PST 9mm Handgun offers a highly maneuverable platform designed for comfortable, efficient operation by both right- and left-handed shooters.

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.

TheSig Sauer MPX Copperhead 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 Sig Sauer 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 Sig Sauer 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.

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.

MAECENAS IACULIS

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ADIPISCING CONVALLIS BULUM

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UPC	798681599011
Weight	4.5 LBS.
Barrel Length	3.5″ BARREL
Capacity	20 ROUNDS
Action	SEMI AUTO
Caliber	9MM LUGER (9X19 PARA)

sig sauer mpx copperhead

Sig Sauer MPX Copperhead

Sig Sauer MPX Copperhead Features

1RAPID DEPLOY PCB BRACE

220 ROUND MAGAZINE

3INTEGRATED FLASH HIDER

4ULTRA-SHORT INTEGRATED 3 1/2 INCH BARREL

SIG SAUER MPX COPPERHEAD

HOW TO CARE FOR YOUR SIG SAUER MPX COPPERHEAD

Specification

1 review for sig sauer mpx copperhead

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sig sauer mpx copperhead

SIG SAUER MPX COPPERHEAD

HOW TO CARE FOR YOUR SIG SAUER MPX COPPERHEAD

Specification

1 review for sig sauer mpx copperhead

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