SIG MCX review

[LittleLebowski]

Very technical, good review.

http://www.recoilweb.com/recoil-excl...mcx-56367.html

[Byron]

Aw, you got my hopes up. MCX not MPX.
[I was about to criticize their naming convention, but then it occurred to me that a) most companies use dumb naming conventions and b) I don't have any particularly good suggestions]

But still a cool review!

This part confused me though:

I would seriously consider this lower with any upper.

While I agree the features/controls look great on that lower, I don't understand how you'd use it with any upper besides an MCX, based on photo 12.

[LittleLebowski]

Title edited.

[Wyoming Shooter]

I just purchased a Sig MCX Patrol. I now have only about 100 rounds through the gun so these are very early thoughts.

My cost at Rocky Mountain Discount Sports in Sheridan, WY was $1700. I mounted a Vortex Sparc II, Magpul MBUS, and Blue Force VCAS. This is a light carbine. Weight, with accessories described, is 7.91 lbs. unloaded. Weight with loaded 30-round Magpul PMAG is 8.95 lbs. The folding telescoping stock has LOP range from 11" - 13". Length with stock fully extended is 35.5". Length with stock folded is 27".

I zeroed at 50 yards with no issues. The Sparc II and MBUS co-witness if that's important to you. With my crappy blasting ammo, the gun is shooting about 1 MOA braced on my range bag. The trigger is abysmal. It will be replaced, soon. I had no malfunctions of any sort in the first 100 rounds. I intend to mount a Thunder Beast flash hider which will allow me to run my TB 30CB9.

While it is way too early to draw any conclusions, my first impression is favorable. I will follow-up with additional info after further use. From the Big Empty, ELN.

https://www.sigsauer.com/store/sig-mcx-patrol.html

http://www.vortexoptics.com/category/sparc_II_red_dot

https://www.magpul.com/products/fire...es/mbus-sights

https://www.blueforcegear.com/vickers-sling

https://thunderbeastarms.com/products/cb-flash-hider

[GJM]

Ed, hopefully they are more durable than the MPX. I have three, my friends another half dozen, all used in USPSA. Soft shooters, but still a work in process as to small parts issues.

[call_me_ski]

Ed, hopefully they are more durable than the MPX. I have three, my friends another half dozen, all used in USPSA. Soft shooters, but still a work in process as to small parts issues.

I traded away my MCX after I was on charging handle number 3 before I hit 500 rounds. They have a new charging handle but they still ship the rifles with the original one that fails easily. They only send you the new one if you break the first.

I wanted the like the gun but it seems like Sig got 95% of the way there and stopped trying.

[Sensei]

So, I'm a fan of the MCX when in its intended configuration as a 300blk SBR. Here is mine:


Without the suppressor, the minimum folded length is just 20". That is 4" smaller than my 9" BMC upper on a CMT UMP-PDW that I reviewed here:

https://pistol-forum.com/archive/index.php/t-22028.html

It produces 1" groups at 50 yards using an Aimpoint T2 and Barnes 110 grain VOR-TX (TAC-TX black tips) and is reliable with 1200 rounds in this SBR configuration.

For those of you who plan to replace the factory trigger - be careful. There are multiple bolt carrier assemblies out there, and not all are are compatible with after market triggers. The new "G" marked carriers with a firing pin safety will work with the Geissele SSA. The ALG ACT and stock trigger will function in the "non-G marked" carriers. Others may be hit or miss.

[Wyoming Shooter]

According to Mike Chandler at Sig, my carbine is not subject to the recall and has the most recent charging handle. I'll send some additional rounds down range and post more.

[MSparks909]

So, I'm a fan of the MCX when in its intended configuration as a 300blk SBR. Here is mine:


Without the suppressor, the minimum folded length is just 20". That is 4" smaller than my 9" BMC upper on a CMT UMP-PDW that I reviewed here:

https://pistol-forum.com/archive/index.php/t-22028.html

It produces 1" groups at 50 yards using an Aimpoint T2 and Barnes 110 grain VOR-TX (TAC-TX black tips) and is reliable with 1200 rounds in this SBR configuration.

For those of you who plan to replace the factory trigger - be careful. There are multiple bolt carrier assemblies out there, and not all are are compatible with after market triggers. The new "G" marked carriers with a firing pin safety will work with the Geissele SSA. The ALG ACT and stock trigger will function in the "non-G marked" carriers. Others may be hit or miss.

Is the "G" carrier something that Sig is going to standardize on in the future? I plan to pick up a MCX later down the road. I'm glad I waited as it seems there's been a few bugs to work out. But I do like the idea of the platform, especially in the 300 BLK SBR configuration.

[Sensei]

Is the "G" carrier something that Sig is going to standardize on in the future? I plan to pick up a MCX later down the road. I'm glad I waited as it seems there's been a few bugs to work out. But I do like the idea of the platform, especially in the 300 BLK SBR configuration.

One would think that the "G" marked FPS will become the standard since is has the proper geometry to function with the ALG, SSA, and stock triggers (according to the internet), while the "non-G" FPS only works with the ALG and stock trigger. However, trying to predict Sig's business practices can be tough.