Daniel Defense Bolt Carrier Group

The Daniel Defense Complete Bolt Carrier Group is the heart of a dependable AR-15. Manufactured to the same exacting standards used in Daniel Defense rifles, this complete M16-profile BCG is designed to deliver smooth cycling, consistent reliability, and long-lasting performance in demanding conditions.

Built around a shot-peened bolt for enhanced durability, each bolt is Magnetic Particle Inspected (MPI) to help ensure structural integrity before leaving the factory. The properly staked gas key helps maintain consistent gas system performance, while the M16-profile carrier promotes reliable operation in both semi-automatic and compatible select-fire platforms where legally applicable.

Finished in a durable manganese phosphate coating, this complete assembly includes the bolt, carrier, cam pin, firing pin, and firing pin retaining pin—ready to drop into your upper receiver with no additional assembly required. Whether you’re replacing a worn bolt carrier group, upgrading your current rifle, or building a new AR-15, the Daniel Defense BCG delivers the quality trusted by professionals and enthusiasts alike.

Compatible with most AR-15, M4, and M16-pattern rifles chambered in 5.56 NATO, .223 Remington, or .300 AAC Blackout, this is an excellent choice for defensive carbines, competition rifles, training guns, or duty builds.

Description:

• Genuine Daniel Defense factory complete bolt carrier group
• M16-profile carrier
• Compatible with AR-15, M4, and M16 platforms
• Shot-peened bolt for increased durability
• Magnetic Particle Inspected (MPI) bolt
• Properly staked gas key for reliable operation
• Durable manganese phosphate finish
• Complete drop-in assembly
• Fits rifles chambered in 5.56 NATO, .223 Remington, and .300 AAC Blackout
• Made in the USA