[KenBry]

Anyone know if the key mod rails can be swapped with the new m loks?

They are a direct swap. Keymod was only available on Gen2 and beyond. I installed a Sig MLOK on my older G2 that was a Keymod style, no problems.

 

[74K5Blazer]

Thanks guys!

 

[Thebankerman]

Great list. Thanks for the information. I have a ILWT 8” barrel. Excellent quality and great customer service. ILWT barrel just as accurate as Sig factory barrel.

 

[weatom]

Thanks. Unfortunately charging handle are completely out of stock in any brand (except SIG of course) . If anyone can spare a Radian or otherwise, It'd be appreciated

 

[Sig911]

Thanks. Unfortunately charging handle are completely out of stock in any brand (except SIG of course) . If anyone can spare a Radian or otherwise, It'd be appreciated

Just found the NLA one at Ranierarms. Only 2 left in stock so better hurry! Was hoping for a radian but they were on back order everywhere.

 

[abnrgr275]

I appreciated reading through this list when I bought my MPX so wanted to add a couple items that I've purchased and can recommend as good aftermarket accessories:

Lancer Systems Sig MPX Magazine Cinch

Check out the deal on Lancer Systems Sig MPX Magazine Cinch at MGW

www.midwestgunworks.com

LongShot 3.80" M-LOK Accessory Rail for Lancer 8.5" Handguard for the Sig Sauer MPX | Cheaper Than Dirt

Shop LongShot 3.80" M-LOK Accessory Rail for Lancer 8.5" Handguard for the Sig Sauer MPX and more from Cheaper Than Dirt!

www.cheaperthandirt.com

The LongShot M-Lok Picatinny accessory rails fit perfectly on the Lancer 6.5", 8", 10", 14", and 16" MPX carbon fiber handguards and are great if you want to add accessories to the top rail or don't care for the way Lancer's handguards look without the full length Picatinny rail extension.

 

[abnrgr275]

Here are a few more aftermarket items I'm using with my MPX:

Red dot sight:

Trijicon 1x25 MRO HD 68 MOA Reticle w/ 2.0 MOA Dot No Mount MRO-C-2200050

FREE SHIPPING on Trijicon 1x25 MRO HD 68 MOA Reticle w/ 2.0 MOA Dot No Mount MRO-C-2200050

www.eurooptic.com

RDS mount:

Scalarworks Leap Mount for the Trijicon MRO

The lightest quick-detach Trijicon MRO mount in existence; Recoil proof, low profile, and maintenance free. Compatible with the Trijicon MRO red dot sight.

scalarworks.com

Back-up iron sights:

MBUS Pro® Sight – Front

The industry-leading MBUS Pro

magpul.com

MBUS Pro® Sight – Rear

The MBUS Pro Rear Sight

magpul.com

 

[abnrgr275]

Here are some tactical light and mount options for the MPX:

https://www.amazon.com/SureFire-Scout-Compact-Profile-Switch-dp-B07KZCQ2CL/dp/B07KZ3688G/ref=dp_ob_title_sports?th=1

LCS For Surefire® - Cloud Defensive

The Light Control System (LCS) is very versatile. As such, there are a lot of possible configurations. We do not sell Surefire brand lights. But we offer our Light Control System (LCS) for them. And we sell the Surefire ST_07 remote switch along with the Surefire UE-07 remote switch/tail-cap...

www.clouddefensive.com

Hot Button - MLOK - Unity Tactical

Hot Button is a revolutionary control device for weapon-mounted electronic accessories. Developed out of a need to conserve rail-estate, improve actuation ergonomics, and mechanically integrate with weapon fore ends, Hot Button has successfully reinvented how you interface with your lights and...

www.unitytactical.com

Side Scout Mount MCX

The Patent Pending Arisaka Side Scout Mount MCX is designed specifically for the Surefire Scout Light M600 and M300 series weapon lights, the Modlite PLH and OKW weapon lights, the Arisaka 300 and 600 Series Lights, the Streamlight Protac Rail Mount 1, 2 and HL-X (non-laser), and Olight Odin. It...

arisakadefense.com

The Arisaka mount above will work on both the SIG MCX and MPX.

 

[KenBry]

Thanks for posting but most of what you posted are generic and applicable to many different guns. This posting is specific to MPX only parts. For instance the MCX mount above will work on any Mlok mount system. I would suggest that you consider posting a separate thread regarding how you dressed out your MPX. I’m sure others would like to see it.

 

[KenBry]

Added some new Drum magazines to the list on Page 1

Sig Sauer® Sig MPX 9mm (50) Rd - Black Polymer Drum

We have a huge selection of after market firearm stocks, magazines and accessories all made in our facility in Arizona.

promagindustries.com

Sig Sauer® Sig MPX 9mm (30) Rd - Black Polymer Drum

We have a huge selection of after market firearm stocks, magazines and accessories all made in our facility in Arizona.

promagindustries.com

 

[abnrgr275]

Thril is now selling their Gen 2 MPX 35-round magazines for $39.99. I missed out on the Gen 1 mags when they were being sold but might pick up a few of the Gen 2 models for range use.

Gen 2 SM9 MPX 35 Round Magazine

The 9mm X 35 Round Generation II SM9 MPX Mag for the Sig Sauer MPX by THRiL, brings durability and reliability.

shop.thril.com

 

[abnrgr275]

Added some new Drum magazines to the list on Page 1

Sig Sauer® Sig MPX 9mm (50) Rd - Black Polymer Drum

We have a huge selection of after market firearm stocks, magazines and accessories all made in our facility in Arizona.

promagindustries.com

Sig Sauer® Sig MPX 9mm (30) Rd - Black Polymer Drum

We have a huge selection of after market firearm stocks, magazines and accessories all made in our facility in Arizona.

promagindustries.com

I can't imagine ProMag is selling too many of the 30-round MPX drum magazines since standard OEM SIG mags hold 30 rounds. Maybe the 50-round drum magazine for kicks and grins at the range, but the 30-round drum for over twice the price of an OEM MPX magazine makes no sense whatsoever.

 

[LostHawaiian]

Thril is now selling their Gen 2 MPX 35-round magazines for $39.99. I missed out on the Gen 1 mags when they were being sold but might pick up a few of the Gen 2 models for range use.

Gen 2 SM9 MPX 35 Round Magazine

The 9mm X 35 Round Generation II SM9 MPX Mag for the Sig Sauer MPX by THRiL, brings durability and reliability.

shop.thril.com

Interesting. I didn't know they were coming out with a Gen2 already. I guess that's why they haven't been available since the pre-orders shipped.

I had 4 pre-ordered and was sent 8 following the delays. I haven't had a single malfunction with any of them yet, so I wonder if others had issues.

 

[Wilmermj]

Anyone use that buffer thingy. Worth it?

 

[abnrgr275]

Lantac is taking pre-orders for their Dragon Dead Air Wolfman MPX Muzzle Brake. This will allow MPX owners to use a DA Wolfman suppressor without requiring additional thread adapters or tri-lug devices. This is a good option since it's hard to find muzzle devices that correspond with SIG's MPX 13.5 x 1 LH thread pattern. I have a Wolfman waiting to be approved and was hoping DA would come out with a KeyMicro brake specifically for the MPX but this one looks like it will work.

Dragon® Dead Air® KEYMO™ Wolfman™ Muzzle Brake MPX | lantac-usa

CURRENTLY ACCEPTING PRE-ORDERSExpected Ship Date: 6-8 weeks from time of order LANTAC Dragon® Muzzle Brake DGN9MMC-WM™ Manufactured to the highest quality standards and featuring a patented design, the LANTAC DGN9MMC-WM™ Muzzle Brake offers improved recoil management and muzzle rise over...

www.lantac-usa.com

 

[TheCroatian]

I have a Copperhead K lower with a MPX K upper. The lower has the rings for the PDW stock to slide in and from what I have heard, most if any PDW stocks made for the MPX will not fit in to these rings? I have the original PDW brace itself but I am missing the little "ejector" button / spring parts. Anyone have ANY idea where I can get that?

 

[HammerThor]

Is there any recommended flash cans that work well the MPX?

 

[MBJKU]

Most of the links on this thread are either dead or out of stock, I guees covid effect...

 

[KenBry]

Most of the links on this thread are either dead or out of stock, I guees covid effect...

I found 4 links out of 24 on manufactures websites that were no longer linking to the product. But to use the term “most”, now you are exaggerating. Post number 1 is now updated.

I do what I can, but I can’t control when a manufacture changes their website or product line.

Sorry, I can’t help you with out of stock items. Try writing to the manufactures of the items you want and let them know there is demand. That’s what I do.

Perhaps you could send a friendly PM to me if you find a link not working and I can fix it.

 

[MBJKU]

I found 4 links out of 24 on manufactures websites that were no longer linking to the product. But to use the term “most”, now you are exaggerating. Post number 1 is now updated.

I do what I can, but I can’t control when a manufacture changes their website or product line.

Sorry, I can’t help you with out of stock items. Try writing to the manufactures of the items you want and let them know there is demand. That’s what I do.

Perhaps you could send a friendly PM to me if you find a link not working and I can fix it.

No blame, many links are dead these days, covid destroying small business.