HK-MR556 Complete Factory HK Bolt Carrier Group – New Unfired

NEW & UNFIRED FACTORY HK COMPLETE BOLT CARRIER GROUP FOR THE MR556.  BOLT CARRIER HAS THE CAPTIVE PIN I N LIEU OF THE REMOVABLE COTTER PIN.

THIS BCG WAS NEVER INSTALLED IN A GUN BUT PURCHASED AS A SPARE PART FROM HK.

ONLY ONE AVAILABLE