Davidson Defense 9MM AR PCC Bolt Carrier Group

Davidson Defense 9mm AR PCC Bolt Carrier Group

The Davidson Defense CO-21020 is a 9mm bolt carrier group built from 8620 alloy steel with nitride finish, designed for AR-9 platforms that feed from Glock or Colt magazines. It pairs with an ambidextrous charging handle and maintains full auto compatible design, meaning the internal geometry supports reliable cycling even in configurations that permit that operation. This is a complete carrier and bolt assembly, not a partial kit.

Key Features

• 8620 alloy steel construction with nitride finish for corrosion resistance and durability
• Full auto compatible internal design for reliable cycling in any legal configuration
• External extractor compatible with both Glock and Colt magazine feed systems
• Ambidextrous AR-15 Holy charging handle in 6061-T6 aluminum with Type II hard coat anodize
• Drop-in compatible with standard AR-9 lower receivers

Perfect For

• AR-9 builders using Glock magazine platforms
• Shooters who prefer Colt magazine compatibility options
• Builds requiring reliable 9mm cycling performance
• Ambidextrous operation in left or right hand configurations

Complete Carrier and Bolt Assembly

This bolt carrier group arrives as a finished assembly ready for installation into your lower receiver. The 8620 alloy steel construction provides the strength needed for 9mm cycling, while the nitride finish protects against wear and corrosion during extended use. The full auto compatible design means the bolt and carrier geometry will cycle reliably regardless of your lower receiver configuration, as long as that configuration complies with applicable laws.

Glock and Colt Magazine Compatibility

The external extractor design feeds reliably from both Glock and Colt magazine platforms, giving you flexibility in ammunition storage and magazine selection. This dual compatibility eliminates the need to commit to a single magazine ecosystem when building your AR-9 platform.

Ambidextrous Charging Handle Integration

The included AR-15 Holy ambidextrous charging handle allows operation from either shoulder without switching hand position. The 6061-T6 aluminum construction with Type II hard coat anodize matches the durability standards of the carrier itself, and the handle maintains standard AR-15 compatibility for easy replacement or upgrade if needed.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify magazine compatibility with your specific lower receiver before operation.