CMMG Receiver Extension Kit - Carbine AR15


  • The CMMG Receiver Extension Kit comes wtih a CMMG 6 Pos Receiver Extension Mil-Spec Buffer Tube, Carbine Buffer Assembly,Carbine Action Spring. Combine this kit with your choice of lower parts kit and butt stock to complete your new lower group.
  • Item Specifications
  • The MSR Arms Advisor articles are intended to answer some of the most common shooter questions and assist our customers in making the best purchasing decision possible.
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