CMMG, Inc MK3 Ejection Port Cover KitAn impressive purchase for almost any MK3 shooter, the CMMG Mk3 Ejection Port Cover Kit 38BA538 was built to be the perfect way to make sure you have a high...
Lower Parts Kit, Mk3, Gunbuilder's KitDoes not include the following parts: - Pistol Grip- Pistol Grip Screw or Washer- Trigger and Hammer- Trigger and Hammer Springs- Disconnect- Disconnect Spring
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