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.**