The Daniel Defense 5.56 Bolt Carrier Group (brand part number 04-013-19032) is a complete, M16-profile BCG built for 5.56 NATO/.223 Remington and 300 Blackout AR-15 builds. Daniel Defense machines this bolt carrier group to full-auto-compatible M16 specifications, the same weight and geometry used in duty and military rifles, for reliable cycling under sustained use. As a complete assembly, it drops directly into a compatible AR-15 upper receiver without needing to source or fit individual bolt, carrier, and gas key components separately. It is a trusted, duty-grade upgrade for builders who want a bolt carrier group built to the same standard as Daniel Defense’s own rifles.

Key Specifications

• Compatible with 5.56 NATO/.223 Remington and 300 Blackout (7.62x35mm) chamberings.
• Built to the M16 profile, the full-auto-compatible carrier geometry.
• Sold as a complete bolt carrier group assembly.
• Overall length runs approximately 7 inches, typical for an M16-profile bolt carrier group.

Frequently Asked Questions

What calibers is this BCG compatible with? 5.56 NATO/.223 Remington and 300 Blackout AR-15 builds.

Is this a complete bolt carrier group? Yes, it is a complete assembly that drops into a compatible AR-15 upper receiver.

What does M16 profile mean? It refers to the full-auto-compatible carrier geometry and weight, the same standard used on M16-pattern rifles.

Buy the Daniel Defense 5.56 Bolt Carrier Group

Order the Daniel Defense 5.56 BCG from our Lubbock, Texas gun shop for fast, insured shipping. Browse more Daniel Defense AR bolt carrier groups for your build.