Colt M16 Bolt Carrier Group 5.56 C Marked

The Colt Bolt Carrier Group is built to proven mil-spec standards, delivering the reliability and durability expected from Colt components.

This complete, drop-in assembly includes the bolt, carrier, and firing pin and is ready for installation in a compatible AR-15/M16 upper receiver. Each bolt is High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) to identify potential material defects and ensure dependable service. The gas key is properly staked to maintain a secure seal and reliable cycling.

The M16-pattern carrier features a full-length rear profile and is compatible with both semi-automatic and select-fire applications when installed in an otherwise appropriately configured firearm. The carrier and gas key are chrome lined for smooth operation, corrosion resistance, and long-term durability under high-temperature operating conditions.

Specifications

C marks can be very faint.  You may need to clean/wipe off to see them

• Manufacturer: Colt
• Caliber: .223 Remington / 5.56 NATO
• Carrier Pattern: M16 / Full-Auto Profile
• Finish: Black phosphate/parkerized
• Bolt Testing: HPT & MPI
• Chrome-lined carrier and gas key
• Compatible with mil-spec AR-15/M16 upper receivers