MPX Gen II is awaiting form 1 approval and I'm looking for advice on preferred stocks to install. My initial instinct it to install a traditional ar-15 stock with a folding stock adapter. What is the best one on the market? How's availability?

What other stock options would you guys recommend? The retractable stocks don't seem to offer the best cheek weld, however, they do maintain the compact nature of the weapon. Is the cheek weld as poor as it appears in videos/photos? Again, best option in this market?

What other options would you recommend?

They are all pretty available these days.  The prices on the sig site are probably on the high side, and dont reflect street price.

Brownells just started carrying the range from Sig:
Brownells MPX

I have an MPX-C and I have used the original collapsible stock as well the Thin Folding (Kate Moss) stock.  I see the point of each.  The thin fold has more length of pull.  The collapse one has that MP5 feel and I like as well.  I am still on the fence, I often take both to the range since I cant make up my mind.    Cheek weld is good on both.  I think sights at absolute co-witness are best.   Lower 3rd is a little high.

The collapse stock feels like I get more head up field of view for situational awareness, the thin-fold is more of a head town, longer range feel to me.

Many people say the Collapse+Fold stock is the best, I have not tried it and don't like the look.

As for an AR stock, I think that defeats the whole purpose.  If I wanted an AR carbine stock, I'd have an AR.   Having a buffer tube on a weapon which needs no buffer tube is silly.

Just my $0.02

Thanks for the information. I think one big issue I'm running into is that the Sig Store does not seem to have all of the accessories for the MPX listed. Other than Sig factory, what collapsible stocks are out there I should consider?

Non Sig options are just starting to come out.

Kak makes a non folding adapter for AR tubes:
https://www.kakindustry.com/mpx-adapter

Safety Harbor makes a collapsible:
http://www.safetyharborfirearms.com/products/kes-kompact-entry-stock/product/70-kes-mpx

There are a few other random mfr making stocks, like:
gunbroker random

I also came across this Zhukov adaptation
Zhukov stock

I think the 1913 rail stocks are in their infancy.  I expect more better stocks to show up eventually.   Its a chicken /egg thing.   Need to have enough demand for the big players to pay attention.

None of the non-sig aftermarket stocks impressed me much.  There is a lot of potential there

I love my M4 folding Sig Stock.  Its one of the cheaper Sig Stocks.

Here are some other MPX stock adapter options:

http://max-11.com/

http://shop.springerprecision.com/product.sc?productId=369&categoryId=45

http://store.sigsauer.com/catalog/product/view/id/7967/s/sig-sauer-stock-adapter-1913-interface-folding-knuckle/

Where did you order the M4 folding stock from? Again, I didn't see it on the sig site.

If it's not too expensive I may just get a few options and play around with them. Do you have any pictures or a link?

Thanks for those. I like the Yugo, but that LOP looks like it might be a bit much. Definitely going to pick up the folding knuckle for $100 to try out. Keep any suggestions coming!

Someone with the know how should put together an accessories list. I wouldn't have found some of these without the community.

Clint-M, you're welcome.

I need help finding a buffer tube adapter for the MCX.  The one from Sig, http://store.sigsauer.com/catalog/product/view/id/7967/s/sig-sauer-stock-adapter-1913-interface-folding-knuckle/, works perfectly, but because I'm stationed in California, it is a no go.  And I do not want to fix it permanently because I'll be leaving CA at the end of the year.  The adapters offered from other companies are specific to the MPX.  Those adapters sit too low on the MCX 1913 interface.  I can't obtain a good sight picture with Magpul MBUS Pro Sights.  Any suggestions would be great!  Thank you.

I called and ordered it with the 20% off now I see it on the website but looks out of stock I have seen it instock many times though.  Here is a picture of mine it telescopes and folds. Perfect cheek weld." />. I took off the Magazine holder on the stock though.  

DSULLY has a great close up picture of it on his MCX in the MCX MPX Photo post on 3/26 the last page. I just took off the magazine holder.

Looks good!

I spoke with a Sig rep today that stated the folding stock adapter alone would be in stock shortly where the entire kit with M4 stock would take a bit longer.

How's the durability/lockup? Any concerns long term?

None.  I bought it temparary waiting on the telesoping stock I had on backorder forever.  Once I received the Original MPX Telescoping stock I sold it because I loved the M4 Stock. No rattling feels well built and for under $200 plus your 20% off.

I have the SIG telescoping folding stock. I've tried them all and this one offers that best cheek weld and is quick to deploy. I believe it also has the longest LOP. It's the only one that feels right to me based on my body type.

I like the look of the telescoping stock the best, found mine on GB from a local shop who's turning them out a a pretty decent price.
MPX Col. Stock

Gotcoffee, what stock is on your mpx?

Itscalled the M4 Style stock made by Sig.  If you want a closer look at it Dsully has some nice pictures of it folded close up.  I just unblolted the extra magazine holder.

I cannot say enough positive things about my Safety Harbor Firearms KES stock:





I highly recommend it over the Sig telescoping stock, which I have played with at my local shop. I am not associated with the manufacturer - just a happy customer.

Link:
http://www.safetyharborfirearms.com/products/kes-kompact-entry-stock/product/70-kes-mpx

$350 is a lot of scratch for a stock.
I might fo after the card cools off.

I ordered a tele stock from MGW today and they have the folding/tele stocks available in FDE if anyone is interested. I called before ordering  my stock and was told their website is live inventory.


Sig Folding & Telescoping FDE Stock - $223.19