The Colt Complete Bolt Carrier Group is a standard factory replacement Bolt Carrier Group for AR-15/M16 compatible firearms. This BCG is rated for use with either semi-auto of full auto variants. The carrier is made of steel and features a parkerized matte black finish. The Gas Key has been properly staked and the gas key is chrome lined. This unit has been high pressure and Magnetic Particle Tested. This complete carrier is the industry standard for quality and performance. It is made to Colt specifications and tolerances, using the same manufacturing and materials as the original equipment, ensuring perfect fit and operation.

Specifications and Features:
Colt SP64028
.223 Remington/5.56mm NATO
Mil-Spec Assembly
Compatible with Full Auto or Semi Auto lowers
High Pressure Tested
Magnetic Particle Tested
Complete Bolt Carrier Group
Properly Staked Gas Key (Carrier and Gas Key are Chrome Lined)
Parkerized Finish
Matte Black