A1Armory AR-15 5.56 Engraved Join Or Die Bolt Carrier Group – a precision-engineered component designed to elevate your AR-15's performance. Crafted with utmost care and commitment to excellence, this Bolt Carrier Group boasts an array of features to ensure reliability, durability, and a touch of patriotic flair.

1. M16 Cut: The M16 cut enhances compatibility and functionality, allowing for a seamless fit with a wide range of AR-15 platforms.

2. 9310 Steel Carrier: The carrier is constructed from high-quality 9310 steel, offering superior strength and longevity to withstand the rigors of sustained use.

3. Carpenter 158 Steel Bolt: The Carpenter 158 steel bolt ensures exceptional hardness and resilience, providing reliable performance shot after shot.

4. 4140 Steel Extractor: The extractor, made from robust 4140 steel, adds an extra layer of durability and longevity to this essential component.

5. Mil-Spec O-Ring: Featuring Mil-Spec O-Rings, this Bolt Carrier Group ensures optimal sealing, minimizing gas leakage and maximizing the efficiency of your firearm.

6. Mil-Spec Gas Rings: The inclusion of Mil-Spec gas rings further enhances the gas containment system, promoting smooth cycling and consistent performance.

7. 4140 Steel Cam Pin: The cam pin, precision-machined from 4140 steel, contributes to the overall reliability and longevity of the Bolt Carrier Group.

8. 8740 Steel Firing Pin with Hard Chrome Finish: The firing pin is made from durable 8740 steel and boasts a hard chrome finish, reducing friction and ensuring reliable ignition.

9. Magnetic Particle Inspected: Each Bolt Carrier Group undergoes rigorous magnetic particle inspection, guaranteeing the highest quality and adherence to stringent standards.

10. Engraved In House: The Join Or Die engraving is done in-house, adding a touch of historical significance to your firearm.

11. Proudly Made In The USA: Rest easy knowing that your AR-15 Bolt Carrier Group is proudly manufactured in the United States, supporting local craftsmanship and quality.

Upgrade your AR-15 with the A1Armory Engraved Join Or Die Bolt Carrier Group, where precision meets patriotism for an unparalleled shooting experience