JMac Customs


(2 Reviews)
Current Stock:
2.71 Ounces


 Finally a way to attach 1913 style stocks/braces to your MP5K.

  • 7076 T6 aluminum
  • hard coat/black anodized
  • 1913 milspec rail
  • includes choate buffer
  • adjustable cheek wield
  • allows attachment of pistol braces
  • installs using factory pins
  • fits MP5K clones (will not fit reverse stretch)

 *Not compatible with CNC Warrior 1913 stocks/braces.


**Attaching a stock to a pistol creates an SBR, all NFA rules & regulations apply.**

*Will not work with collapsible PDW style stocks or braces 


Reviews (2)


Written by Joe Yarckin on Aug 30th 2021

Awesome product great look and perfect fit!


Written by David on Jun 17th 2020

If you are SBRing an SP5K, this is a great adapter to allow you to use Sig folding telescopic stock or any other stock that utilizes 1913 rail. This adapter allows you to adjust the height of your cheek weld to permit ideal use of iron sights or an optic. Just put the stock higher or lower based on what you are using. Excellent adapter. Fit is snug but why would you want it loose? I'm no fan of wobble and so I find this to be of excellent quality. Honestly, great balance of aesthetic and ergonomics in my opinion.

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