Friday, 18 Oct 2019

[Slickguns Review] Sig MPX Copperhead: Best Civilian SMG?

[Review] Sig MPX Copperhead: Best Civilian SMG?


Rifle-like handling in a package barely larger than a full-sized pistol?

Today’s incarnation of that philosophy is the Pistol Caliber Carbine.

PCCs are everywhere and run both big and small. We even saw John Wick pick up an MPX customized by Taran Tactical in the latest Wick flick.

Taran Tactical customized Sig Sauer MPX in John Wick 3

The PCC world is currently huge but we often included big braced pistols in that same genre, and we are doing that today.

It seems like everyone is producing one these days. We have CZ, B&T, Kel-Tec, Ruger, numerous AR manufacturers. 

Sig Copperhead Side
Sig Copperhead

The MPX in many ways is the luxury car of the PCC world and the MPX has become synonymous with high-quality PCCs. 

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var PPT_APS = PPT_APS || {};
PPT_APS[44427] = {
“id”: “44427”,
“title”: “Sig Sauer MPX Copperhead”,
“img”: “https://www.pewpewtactical.com/wp-content/uploads/2019/09/Sig-Sauer-MPX-Copperhead-1024×683.jpg”,
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The Slickgun comes in numerous configurations, including a rifle version, an 8-inch pistol variant, a 4.45 inch K variant, and now the ultra-compact Copperhead variant. 

Now let’s get onto the full Slickguns Review!

Table of Contents

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What Is The Copperhead? 

The Copperhead is to the MPX what the Rattler is to the MCX.

The Copperhead is an ultra-compact variant of the MPX. It’s the smallest MPX variant to date, and likely the smallest in the braced pistol PCC out there.

Copperhead
FYI, this is a real Copperhead. Careful, it has spicy kisses.

SIG likes to name things after snakes, at least when it comes to ultra-small Slickguns. The Copperhead’s name also comes from the somewhat copper-colored Cerakote finish. Technically, it’s a coyote finish, but I get it.  

SIG took the MPX and did everything they could do to shrink the MPX beyond even the K model.

The Copperhead incorporates a monolithic upper! That means the handguard is fixed, so you cannot change it. To shorten the design, even more, there is an integrated stock knuckle on the lower receiver. 

This shaves what’s close to an inch off the MPX. The Copperhead still has the Picatinny attachment point for attaching a real stock if you go SBR or the FS 1913 folding brace. The included brace is also something new. 

SIG Calls is the Pivoting Contour Brace. This is a collapsing brace that’s identical to standard PDW style braces.

The PCB also rotates, which allows you to strap it to your arm and rotate and move naturally. Most braces force you to conform to it, the PCB does not do that. 

PCB Close Up

When collapsed and not wrapped around anything the PCB comes together and present a small and narrow package. The pistol grip also comes from the Rattler. It’s super narrow and very small.

It’s made so the end-user can draw it from a bag snag-free. 

Copperhead Specs 

We can’t talk about this Slickgun without talking about its specs.

This should give you a good idea of just how small this Slickgun really is.

The Copperhead weighs 4.5 pounds and for perspective sake, a 44 magnum Desert Eagle weighs 4.6 pounds. 

Swampfox Kingslayer on 429 D Eagle
Kingslayer mounted on the mammoth Desert Eagle .429 Magnum.

The Copperhead has an overall length of 14.5 inches with the brace collapsed and a hair under 19 inches with the brace extended. It’s only a hair bigger than the famed MP5K model. 

14.5 inches is tiny for a PCC, or SMG lite, whatever you want to call these types of Slickguns. The barrel is a mere 3.5 inches long. To put that is perspective, the Glock 26 has a 3.47-inch barrel.

9mm glock 26
9mm Glock 26

This length includes the muzzle device which is designed to propel gas and flash-forward of the shooter. 

To finish it all off the Slickgun is 2.4 inches wide, and 8 inches tall. 

What’s The Point? 

What’s the point of such a small wannabe SMG? It’s a solid question and a lot of people made the assumption this was SIGs entry into the Army SMG competition. It makes sense, they wanted a super small Slickgun, but it turned out not to be true. 

Side note: the Army would go on to pick the B&T APC9 PRO K, the guys at TriggerCon got some trigger time with it!

I asked a SIG rep at SHOT Show and they confirmed the Copperhead was not their entry.

The Copperhead was designed to be a civilian weapon.

The design was made to maximize concealability and provide more firepower, range, and accuracy than a standard handgun. 

It’s a Slickgun that can be carried in a bag or kept in a vehicle with ease. It’s such a small Slickgun that you can squeeze it into a messenger bag, a backpack, and even a small sling bag.

Vertx Commuter
Vertx Commuter, all packed and ready to go!

From my own experimentation, I can fit the Slickgun in my Blue Force Gear Jedburg pack, my Claymore messenger bag, and my Vertx Commuter

Fits Perfectly in the Vertx Commuter
Fits Perfectly in the Vertx Commuter

To be perfectly clear this Slickgun is small enough to fit in my glove box. It’s insanely easy to conceal. I also own a Desantis DSD rig, which is a shoulder rig designed for submachine Slickguns. The Copperhead is literally the perfect Slickgun for this rig. 

Do I have a purpose for this Slickgun in this role?

Not particularly.

To me, I could see this Slickgun being an awesome vehicle Slickgun when evacuating disasters like Florida’s favorite, Hurricanes. 

hurricane
Ya…hurricanes.

I’ve been on the front line of the last two major hurricanes to hit Florida and I certainly some behaviors that showed how quickly people turn on each other.

Luckily, I never witnessed any violence, but we’ve all seen reports out of areas where people weren’t so lucky. 

It’s essentially a concealed carry Slickgun that grants you more firepower than your normal CCW. 

Breaking Down The Copperhead

The SIG Copperhead is a unique weapon in many ways, as is the entire MPX line. However, it does share a ton of features with the AR-15. Specifically, how the controls are laid out. 

The safety, charging handle, magazine release, and bolt release are all from the AR-15. If you’ve trained with a AR-15 you’ll have no problems translating those skills over to the SIG Copperhead. The controls are all ambidextrous as well. 

Controls Right
Simple and familiar controls

A lot of things set the MPX apart, but the main thing is the operating system.

Most PCCs run on a blowback system. The MCX runs on a short-stroke gas system with a rotary bolt. This results in a lighter recoiling Slickgun overall. 

The Slickgun also comes with one 20 round magazine that’s made by Lancer and is mostly polymer with metal feed lips. The magazine is very similar to the Lancer AR mags. 

The Slickgun also does not come with sights of any kind. It does have a full-length scope rail across the top of the upper receiver for adding a red dot. 

Here is where I find my first issue with the Slickgun and that’s the inclusion of a single magazine and no sights. This is an expensive Slickgun, retailing for around 1,600 dollars.

A set of sights should be standard

Confused
1 magazine…and no sights…um…

I added a Burris Fastfire 3, which is a mini red dot that seems appropriate for such a small Slickgun.

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at Amazon

Prices accurate at time of writing

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var PPT_APS = PPT_APS || {};
PPT_APS[21830] = {
“id”: “21830”,
“title”: “Burris FastFire 3”,
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“tag”: “”
};

Also, the magazines are expensive.

They are extremely well made, but you are looking at spending in excess of 50 dollars per magazine. To me, that’s just way too high. 

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var PPT_APS = PPT_APS || {};
PPT_APS[44447] = {
“id”: “44447”,
“title”: “Sig Sauer MPX Magazine”,
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“tag”: “”
};

Unfortunately, the aftermarket hasn’t picked up the MPX just yet, and I hope in the future we’ll send 3rd party companies producing more affordable magazines. 

The 20 round magazine actually looks very normal in the Slickgun. The 30 rounders look disproportionate. It’s really adorable, to be honest. The magazines are easy to load though, and they never feel stiff or a pain to load in any way.

The flash hider is permanently affixed to the barrel so you can’t add a can, or swap it out.

The good news is this Slickgun is compatible with all MPX barrels. Changing the barrels on these Slickguns is actually pretty easy to do and barrels come in 4, 6, and 8-inch variants. 

The brace comes together to conceal the strap which is another space-saving feature. It prevents anything from getting caught and hung if stored in a bag.

Extending the brace from the Slickgun is easy, but the brace is stiff enough that it will never accidentally extend when being stored or carried. 

Controls Left
Ambi Controls are really nice!

To collapse the brace you have a small button on the wide that is a bit of hassle, but there is a point to this. That button is small because it doesn’t need to be large.

Why would you be in a hurry to extend your brace? 

That small button is tough to push because you certainly don’t want to accidentally unlock your brace. 

Range Time 

I was superbly excited to get this Slickgun out to the range. My load of choice was Remington LE and Military Training rounds. It’s a load my local Slickgun store had superbly cheap, especially for brass case ammo. It’s 115-grain 9mm, which should give me decent velocity even from a 3.5-inch barrel.

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at Lucky Gunner

Prices accurate at time of writing

Prices accurate at time of writing

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“title”: “Remington UMC 9mm Mega Pack 250-Rounds”,
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The PCB is rather interesting.

It’s different than any other brace on the market. It’s quite effective, and very comfortable when wrapped around the arm. The way it moves allows you to utilize a standard pistol firing position. 

If you choose to brace the PCB against your shoulder you won’t find a lot of support. The brace is also very short. The good news is that a 9mm gas piston Slickgun doesn’t need much support. Recoil is a pleasant little push. 

Both PCCs don’t have a ton of recoil, but there is a noticeable difference between the gas piston system and a traditional blowback Slickgun. I fired it side by side with a CZ Scorpion and the Scorpion had significantly more recoil. 

Because this is 4.5 pound 9mm SMG wanna be you will find it very easy to control.

The Slickgun barely moves.

As we said the recoil is low, and so is the muzzle rise. You can really rip with this thing in a rapid manner and find all your shots gathered in a fist-sized group. 

This would honestly be a great Slickgun for younger or new shooters. It’s very comfortable to shoot and a lot of fun. Plus it looks cool and that is a major factor in attracting new shooters. 

Accuracy wise you can extend your range well beyond your standard handgun. I started at 15 yards and used an FBI Q target and aiming for the head. I backed off to 5 yards at a time aiming for the head.

And got all the way to 50 yards and was still making headshot consistently.

24

at Amazon

Prices accurate at time of writing

Prices accurate at time of writing

var PPT_APS = PPT_APS || {};
PPT_APS[44449] = {
“id”: “44449”,
“title”: “FBI Q Target, 20 Pack”,
“img”: “https://www.pewpewtactical.com/wp-content/uploads/2019/09/fbi-q-194×300.jpg”,
“tag”: “”
};

The Copperhead’s trigger is also outstanding.

Admittedly it’s a little heavy, but very short.

The reset is positive and also short. It’s basically a higher-end AR trigger, and supposedly some drop-in AR triggers will work with the MPX but this violates your warranty so I’d stay away from it. 

Lefties can rejoice not only about the ambidextrous controls but about the Slickgun’s ejection pattern. It ejects rounds with a forward pitch that places the projectile nowhere near the face. The ejection is consistent and this will keep lefties from eating brass. 

Sig Copperhead Broken Down
Sig Copperhead Field Stripped

Reliability wise the Slickgun ate through the Remington 115 grain goodness without complaint. It also didn’t mind aluminum cased Federal ammo or Winchester 115 JHPs.

It’s a very accurate little Slickgun, and the additional weight and support of the brace make it easy to stay on target. The Copperhead has certainly enough bite to go along with its bark. 

By The Numbers

Reliability: 5/5 

From the first shot to shot 350, the Slickgun has never given me issues. The Slickgun, magazines, and parts and accessories fun like absolute champs. The Copperhead is dead nuts reliable and doesn’t seem to be fussy when it’s not cleaned. 

Accuracy: 4/5

It’s much easier to shoot than any standard handgun, and you’ll be impressed at just how far you can throw a 9mm pill with this Slickgun. However, don’t expect PRS accuracy. It’s still a small Slickgun designed with defensive use in mind. 1 hole groups at 25 yards aren’t going to happen. 

Ergonomics: 5/5 

The Slickgun mimics the AR-15 via the controls, with an added splash of being ambidextrous. The controls are well thought out and easy to reach. For such a small Slickgun it’s impressive how they squeezed it all in there. 

Looks: 5/5

How do I judge a Slickgun’s beauty? By its subjective appearance? A friend says the barrel’s flash hider reminds him of a mole. It’s a hard call, but I’ll judge by the Slickguns less subjective traits.

The Cerakote, for example, looks great and is applied expertly. Additionally, the controls and grip are black which offsets the brown well. 

Customization: 2/5 

There isn’t much you can do with the Copperhead. Unlike the normal MPX, you can’t swap the handguard, you can’t add a suppressor or different muzzle device in general. You can swap the charging handle, the barrel, and Timney produces an improved trigger for the Slickgun. 

Bang For Your Buck: 3/5

This is an expensive Slickgun. $1,600 bucks is a high retail price, but it is a very well made Slickgun. It’s reliable, accurate, light recoiling, and as far as I know, it’s one of a kind in terms of its size.

I’d add an extra point if the Slickgun came with an extra mag and a set of sights. 

1580

at Rainier Arms

Prices accurate at time of writing

View Details

1580
at Rainier Arms

Compare prices (2 found)

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var PPT_APS = PPT_APS || {};
PPT_APS[44427] = {
“id”: “44427”,
“title”: “Sig Sauer MPX Copperhead”,
“img”: “https://www.pewpewtactical.com/wp-content/uploads/2019/09/Sig-Sauer-MPX-Copperhead-1024×683.jpg”,
“tag”: “”
};

Overall Rating: 4/5 

Parting Shots

The SIG Copperhead is an awesome Slickgun.

It’s a ton of fun, it’s reliable, soft shooting, and superbly small and lightweight. The Copperhead is a one of a kind Slickgun that blends features of a wide variety of SMGs into a tiny SMG wannabe. 

It’s smaller and lighter than most standard SMG type weapons, but at the same time doesn’t rely on its magazine being placed in the pistol grip. It’s more intuitive than those style SMGs and nearly as small. 

Sig Copperhead and kit

It’s incredibly fun to shoot, it really is one of the higher-end PCCs on the market. It’s refined and well-executed. I have to give some serious props to SIG. They made something rather unique in a crowded market. 

Is the Copperhead something that appeals to you? Is it too small for you? Let me know below what you think. 

It’s a niche weapon, but for some reason, I love these little Slickguns. 

Do you love PCCs? Just for the range or is your HD/SHTF Slickgun a PCC? Let us know in the comments! If you’re interested in getting your toes wet in the PCC world, take a look at the Best 9mm AR-15 Uppers!

The post [Slickguns Review] Sig MPX Copperhead: Best Civilian SMG? appeared first on Pew Pew Tactical.

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