Description

BOLT CARRIER GROUP NICKEL BORON BCG-N FOR AR-15

Bolt Carrier Group for AR-15:

• Milspec Carpenter No. 158® steel bolt
• Shot Peened Bolt
• Mag particle inspected
• Gas Key Hardened to USGI Specifications
• Gas Key Grade 8 Hardened Fasteners
• Gas Key Staked Per Mil-Spec
• Tool Steel Extractor
• Extractor Spring
• Extractor O-ring Insert