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Questions & Answers
How will this work, on a milspec, rear end? Expert Answer

This will not fit a milspec lower. This is only compatible with the Sig Sauer MPX.

by Ethan C., Gear Expert, April 3, 2021
What is different between the MCX and MPX that make this non-interchangable? Will this fit the MCX Hybrid/MCX AR15 conversion? Expert Answer

No, the Maxim Defense Industries CQB Stock is only compatible with the MPX, and MPX K via the 1913 interface. The receiver between the MPX and MCX is different and would not allow for proper functionality of the sliding stock.

by Ethan, Gear Expert, September 22, 2022
Customer Reviews
Helpful Positive Review Excellent build quality and durability by Bubby, Verified Owner, February 24, 2018
The one I've purchased is specifically for the Sig Sauer MCX/ MPX line..The metal rods that slide in and out do not fit in the MCX slots designed for PDW style..I actually prefer this style because it allows for me to charge my Sig Rattler easier tha...
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3/3 found this helpful
Helpful Negative Review Deputy Sheriff by GJD, July 28, 2020
Brace is really nice construction but would not fit my MPX easily. I also accidentally ordered the stock instead of the PDW brace. My fault on which one I ordered but not sure why it doesn’t fit easily. Maybe because I have a gen 1 MPX?
2/2 found this helpful
Read All 2 Reviews
Gun Model: SIG Sauer MPX Color: Black Length of Pull: 4.1875 - 5.375 inWeight: 17.5 ozCondition: Factory DEMO Included Accessories: Both Style Sling Swivels - QD & D-Ring Claw Hook , Screws , Wrenches Additional Features: 4.1875 inches closed , 5.375 inches 1st position , 6.5625 inches 2nd position , 7.75 inches 3rd position , 9 inches fully extended Fabric/Material: 7075 Aluminum

Code: MDI-RSC-CQBSSMX-MXM-47690-DEMO

MPN: MXM-47690-DEMO

Product No Longer Available

Product Info for Maxim Defense Industries CQB Stock for SIG MPX

To ease your Sig MPX into the next tier of firearm accessories, pick up this Maxim Defense Industries CQB Stock for SIG MPX. All of the features you desire, such as an extended Cheek Weld and a 5-Position Buttstock, but these Maxim Defense Industries Rifle Stocks are compatible with full-auto compatible SIG MCX lowers. For increased durability, the Maxim Defense Industries SIG MPX CQB Stock is constructed from 7075 Grade II Aluminum Alloy, and it weighs a mere 17.7 ounces. The extension tube that comes with this stock provides water-tight storage, and it swiftly deploys to provide the most natural shooting feel possible. Plus, it has an integrated Sling Mount so that you can incorporate your choice of sling for a comfortable carry. Easily upgrade the look and functionality of your weapon with this Maxim Defense Industries CQB SIG MPX Rifle Stock.image

Features of Maxim Defense Industries CQB Stock for SIG MPX

  • SPECS
  • FEATURES:
  • Extended Cheek Weld, Easily installs on SIG MCX lowers, Extension tube doubles as water tight storage, Each CQB Stock comes with a QD sling mount installed and also ships with a D-Ring sling mount for user preference.
  • WEIGHT:
  • 17.7 ounces
  • LENGTH:
  • 4.1875 inches closed
  • 5.375 inches 1st position
  • 6.5625 inches 2nd position
  • 7.75 inches 3rd position
  • 9 inches fully extended
  • MATERIAL:
  • 7075 Aluminum Alloy housing for optimal performance with QD mounts
  • Color
  • Black

Package Contents:

  • Maxim Defense Industries CQB Stock for SIG MPX
  • Both Style Sling Swivels: QD & D-Ring (Claw Hook) Screws Wrenches

Gun Parts and Accessories

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Maxim Defense Industries CQB Stock for SIG MPX Unavailable & Discontinued Models

List of Unorderable Models

DEMO, Maxim Defense Industries CQB Stock for SIG MPX, Black, MXM-47690 , MPN: MXM-47690-DEMO , Code: MDI-RSC-CQBSSMX-MXM-47690-DEMO
Maxim Defense Industries CQB Stock for SIG MPX, Black, MXM-47690 , MPN: MXM-47690 , UPC: 680017476908 , Code: MDI-RSC-CQBSSMX-MXM-47690
Maxim Defense Industries CQB Stock for SIG MPX, FDE, MXM-47691 , MPN: MXM-47691 , UPC: 680017476915 , Code: MDI-RSC-CQBSSMX-MXM-47691
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