American Built Arms Company Pro 5.56mm Bolt Assembly Silver/Black Small ABA5.56B. For superior reliability these Bolt Carrier Groups feature a nickel boron coated bolt and extractor each crafted from heat-treated steel. A nickel boron coated bolt...

Out of stock
  • ShipAmount
  • $0.00
  • RevType
  • 2
  • Manufacturer
  • American Built Arms Company
  • Sku
  • ABA556B
  • Identity
  • 6652327274

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