+1-800-504-5897 Live Chat Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Reviews & Ratings for SIG SAUER MCX/MPX Telescoping And Folding Stock Black - All NFA Rules Apply STKXFOLDTELEBLK — 49 reviews

(49 reviews)
SIG SAUER MCX/MPX Telescoping And Folding Stock Black - All NFA Rules Apply STKXFOLDTELEBLK
SIG SAUER MCX/MPX Telescoping And Folding Stock Black - All NFA Rules Apply STKXFOLDTELEBLK
$249.99 $199.99 Save 20%
View Product
Write a Review
Compare (0)
1 item has been added
Add at least two items to compare
Most Helpful Positive Review Sig Sauer MC/MPX Stock
The stock is very well made and attached easily to my non-Sig 5.56 platform's 1913 "rear accessory mounting rail." It also stays secured when folded or unfolded, while shooting. A couple of points I'd like to make are: 1) The "button" for articulating the length of the stock is unlike a traditiona...
Read More...
Most Helpful Negative Review sig sauer mcx side folding collapsible stock
Easy install.looks great, but getting the dang thing to break loose to fold to the side requires the strength of superman or a screwdriver. I used the second option. Getting the button to work to collapse it also is a bit of a pain, but oh well. Hoping it will loosen up time and lube
Show
Sort by
Filter by

Great option

by Kw3263, Verified Owner from MO, United States Written on May 21, 2025
Bought a Rattle and didn't care for the original stock. Wanted something I could adjust. Feels great and stays tight when folded.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

sig folding stock

by DJT, Verified Owner from MI, United States Written on April 27, 2025
Great stock, Great look, makes for a very compact item. The only caveat is when first trying to use it, its extremely difficult to fold, I mean EXTREMELY difficult; but once you get it to fold for the 1st time, you're good to go after that.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

As advertised

by Mike, Verified Owner from TX, United States Written on March 4, 2025
Added a Burris 5x prisim scope the sig mcx .556 rifle. The original folding stock on the gun served its purpose but this adjustable stock is a must have for a scope. Well constructed and appears very robust. Somewhat expensive but Optics had the best price and free shipping.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Best Stock for MCX

by WillEd11, Verified Owner from TX, United States Written on February 28, 2025
I've tried them all and this is the very best feeling (and fit) stock for my Sig Rattler LT. I could not be happier with the build quality and overall design. If you're on the fence... don't be... just get it and you'll be happy.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

SIG MPX collapsible stock

by Leo, Verified Owner from AZ, United States Written on February 22, 2025
Installed on two 4 1/2 inch MPX ‘s. Replaced the pistol brace and SBR the fire arms to make them NFA compliant, and also USPSA compliant. Overall length is the same as the pistol brace, but will adjust a few inches shorter.
Pros:
  • Great stock for a SBR
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Great SBR-Maker

by Former LEO, from TX, United States Written on February 14, 2025
Bought one of these for my SIG Rattler 300BO. Works flawlessly. Then, bought another one to add to my recently-acquired Ruger PC Charger 9mm. Now I have two caliber SBR's!

Only reason for 4/5 stars = these are hard to fold!
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Sig MCX Stock

by Ken, Verified Owner from ID, United States Written on January 22, 2025
Recently purchased an Sig MCX telescoping and folding stock for my custom AK 74 rifle. This is an excellent stock in both fit and finish. The Picatinny mounting system is solid with no play or wobble. I would highly recommend this stock.
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Great stock

by Stiring, Verified Owner from OH, United States Written on January 18, 2025
Had issues on my end but that's due to situation not bad item.
Pros:
  • A lot of material on the clasping mechanism to the 1913 rail
Cons:
  • A lot of material on the clasping mechanism to the 1913 rail
Best Used for:
  • any
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Sig Rattler stock

by Brady, Verified Owner from GA, United States Written on January 7, 2025
Great product. Solves problem of getting PDW out of sight in a backpack. As with most things SIG, it is pricey
Would recommend: Yes
Was it helpful to you? Yes | No
Share

Great Function and Fit

by Brian, Verified Owner from AZ, United States Written on December 21, 2024
Perfect for what I need. Easily folds and telescopes to fit the specific needs of the particular situation.
Would recommend: Yes
Was it helpful to you? Yes | No
Share
There are no reviews that match your criteria. Would you like to review this product?