Product Summary
The Colt AR-15 Bolt Assembly is a complete mil-spec component designed for 5.56x45mm NATO and .223 Remington cartridges. This assembly includes all necessary internal components and critical parts required for reliable operation. It is engineered to be installed directly into a bolt carrier, making it an ideal choice for maintenance or upgrading your AR-15 platform. Whether you are performing a repair or building a custom rifle, this authentic Colt part ensures high-quality performance.











