AAC Bolt Carrier Group Assembly, Nickel Boron Coated

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  • Regular price $229.99

Part #: AAC-103646 Brand: Advanced Armament Corp

The Advanced Armament Corporation full auto profile carrier is nickel-boron coated for smooth, reliable action. The Mil-Spec bolt is made from Carpenter 158 steel. The carrier has a proprietary cam pin travel path, and the carrier key is properly staked with Permatex. 


  • AAC AR-15 .223/5.56 Complete Bolt Carrier Group NiB 
  • 5.56 NATO, .300 AAC Blackout
  • Full auto profile
  • Nickel boron plated
  • Carpenter 158 bolt
  • Properly staked carrier key

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