Built for dependable performance, the Aero AR-15 5.56 Pro Series nitrided bolt carrier group is a durable core component for compatible AR-15 builds. Designed for 5.56 NATO and .223 Remington, it combines precision engineering with a tough surface finish to support smooth, consistent cycling.
The nitrided coating helps resist wear and corrosion while reducing friction for easier maintenance and reliable operation. A 9310 steel bolt provides strength and heat resistance, while the securely staked gas key supports consistent function. Whether completing a new rifle or replacing a component, this Aero Precision BCG offers practical durability for range, competition, and other compatible applications.
- Designed for AR-15 platforms chambered in 5.56 NATO or .223 Remington
- Nitrided finish helps protect against corrosion and surface wear
- Smooth-cycling surface designed to reduce friction and carbon buildup
- Durable 9310 steel bolt engineered for strength and heat resistance
- Staked gas key supports secure, dependable operation
- Full-auto rated for compatible builds; verify configuration and local requirements
- Complete bolt carrier group includes bolt, carrier, firing pin, cam pin, and retaining pin
- Made by Aero Precision, a trusted name in precision AR-15 components
Choose the Aero AR-15 5.56 Pro Series BCG Nitrided for a hard-wearing, easy-to-maintain component built to support consistent performance. Confirm compatibility with your rifle and follow manufacturer instructions for installation, inspection, and maintenance.
