News Flash : Orders may take 5-7 days to ship out. Contact your FFL dealer BEFORE placing the order. Your FFL must be Open During Normal Business Hours M-F ! Complications due to FFL hours of operation issues may incur extra shipping fees!  We can not offer custom delivery times . Stay Safe & Wash Your Hands!


JMAC CUSTOMS RSA-MP5K Rear stock adapter


JMac Customs RSA-MP5K Rear stock adapter features

  • -7076 T6 aluminum construction 
  • -Hard coat/black anodized
  • -1913 milspec rail
  • -Includes choate buffer
  • -Makes for adjustable cheek weld height
  • -Also allows attachment of pistol braces
  • -Installs simply using factory push pins
  • -Fits all MP5K clones (will not fit reverse stretch)

JMac Customs has finally created a way to attach Sig-MPX/MCX style stocks to your MP5K.

The SIG style stock lock in place & provide a better check weld than many traditional stock setups.

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


Shipping $7.95 VIA USPS Priority / First Class Mail


Related products
Atlantic Firearms,llc
10337 Bunting Road
Bishopville, MD 21813
Office: (410) 352-5183
Voice: (410) 352-5183
Fax: (410) 352-3374