Sig MPX

[lew.45]

I got to spend a few hours at the range this weekend. A buddy of mine had his 4.5” Sig MPX there. At first glance I wasn’t interested. After I ran a few mags of 9mm through it I loved it. The fun factor was awesome! Evidently they are expensive and very hard to find. I can definitely see one of these in my future. Do any of you own these? I would like to know what your experiences with them have been like. The collapsible stock would make it a great little backpack gun. It would definitely be a fun gun to have but not a need.

[halfmoonclip]

Had a somewhat larger version of the MPX; loved how it was made, but mine was less than reliable, even after a trip to the mothership.
Also, I'm a little perplexed at these ultra-short PCCs; they really gain little in handiness, and fail to give a boost in velocity compared to a handgun.
I've got a Colt 9mm SBR (10.5"), and a CZ Scorp (8"). The Colts are made of unobtanium these days, but the Scorp is really worth a look. They are relatively inexpensive, as are their magazines ($18@ vs $60 for the SIG (!) ), and mine has proven extremely reliable no matter what I feed it. The standard irons are quite good, but a red dot is on mine. You will want a stock/brace.
Yeah, PCCs are a ball. They make empties of full ones in a hellfire hurry!
Moon

[lew.45]

Thank you for the reply. After 179 views finally a response. I’ll take a look at the scorpion. The MPX is definitely expensive. Evidently it’s also very rare.

[Orionchrome]

I bought a carbine length MPX in 2017, and it's better now than when I first got it.

Within the first 800 rounds, the tip of the firing pin broke off, Sig overnighted me a new firing pin, bolt, and bolt carrier, and I have had no issue since.

From my experience, gen one magazines are not as reliable as gen two mags. Or at least the stoppages I did have dropped off the map once I got rid of all my gen one mags. They also run best when they are clean, specifically the piston. I usually run into stoppages after I have fired 1500-2000 rounds(typically one or two stoppages within 90 or so rounds), but a good cleaning takes care of it.

I've SPRed it and put a 6.5" barrel on it, and I shoot it more now than when it had a 16' barrel, SPR PCCs are just cool and being a lefty myself, I like the setup. All in All, it's not that bad of a gun, and I do enjoy shooting. But all things considered, you can save money if you look at other options like the Scorpian, sucks paying almost $70 bucks for magazines.

[lew.45]

I looked at a Scorpion and a Ruger PC carbine today both seemed a little clunky compared to the MPX..

[Pappabear]

I have an MPX, initially it needed a break in period. After that, I have run the shit out of it and it rocks on. I have an MP5, MPX and a B&T APC pro. The MPX can hold its own. But if I were buying a gun in that price range I would get a B&T APC pro. A couple hundred more, but IMHO, its worth it. MPX has been awesome and the controls are AR15 exact, so there is that. I have the 8 inch barrel I think it is. I never clean mine and I runs and runs. Sometimes, I will pour some Frog lube into it before a range trip, if its super crusty.

I don't think there are hard to find, check gunbroker.

Good luck and buy something, gun ranges are open!

PB

[ramairthree]

Had a somewhat larger version of the MPX; loved how it was made, but mine was less than reliable, even after a trip to the mothership.
Also, I'm a little perplexed at these ultra-short PCCs; they really gain little in handiness, and fail to give a boost in velocity compared to a handgun.
I've got a Colt 9mm SBR (10.5"), and a CZ Scorp (8"). The Colts are made of unobtanium these days, but the Scorp is really worth a look. They are relatively inexpensive, as are their magazines ($18@ vs $60 for the SIG (!) ), and mine has proven extremely reliable no matter what I feed it. The standard irons are quite good, but a red dot is on mine. You will want a stock/brace.
Yeah, PCCs are a ball. They make empties of full ones in a hellfire hurry!
Moon

They are definitely fun. Even practical if they used the same magazines as your pistol. They may not seem as handy, and the short ones don’t gain a lot of velocity,

But,

Draw and fire a pistol, launch five rounds fast at a target 10-15 meters away. Rapidly change magazines, shoot another five rounds.

You will likely get a group something like this



OR this




Now do it with your carbine/braced pistol -

It will likely look something like this,



Which may not be that big a deal at 25m or under.
But you sure reliably get a lot more hits at 50m, let alone 100.

And they are more wieldy with 30 round mags than a pistol.

And a novice with a little training and not much practice can reliably use it effectively in comparison to a pistol.

And,
To reiterate, fun.

Less dedicated relatives frustrated with pistols and rifle round carbines can often be lured to the dark side with them as a gateway gun.

[halfmoonclip]

Without a doubt, easier to hit things with a long gun, especially if everything goes sideways.
Preaching to the choir, ram'!
Moon

[griff411]

I'm surprised to see that these are still available...

https://www.midwayusa.com/product/10...d=306817<br />


Sent from my moto g(6) using Tapatalk

[Pappabear]

So yesterday I purchased an MPX K Copperhead. It’s all black with a 4.5” threaded barrel and a Timney flat trigger. I will be shooting it tomorrow morning. I’ll give an update after.

Congrats, looking forward to update.