JMac Customs

$ 84.95

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Currently being manufactured. Get on the notify me list, to be the first to know when the RSA-MP5K is fully stocked!

Finally a way to attach Sig-MPX/MCX style stocks to your MP5K.

These stocks lock in place & provide a better check weild.


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

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

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