Aero Precision 5.56 Phosphate Bolt Carrier Group
Reliable & Durable Performance for Your AR15 Build
The Aero Precision 5.56 Phosphate Bolt Carrier Group is built to mil-spec standards to deliver unmatched reliability and long-term durability. Precision-machined and engineered for consistent cycling, this BCG is ideal for AR15 builders who demand rugged dependability and smooth operation under any conditions.
Includes
- M16-Cut Carrier – Full-auto rated for maximum durability and compatibility.
- Carrier Material: 8620 Steel – Heat-treated for long-term wear resistance.
- Coating: Mil-Spec Phosphate – Proven for corrosion and abrasion protection.
- Properly Staked Gas Key – Ensures reliability under sustained fire.
- Chrome-Lined Gas Key & Bolt Channel – Reduces friction and improves cleaning ease.
- Bolt Material: Carpenter 158 Tool Steel – Mil-spec standard for strength and toughness.
- Shot Peened, HPT (High Pressure Tested), and MPI (Magnetic Particle Inspected) – Guarantees structural integrity and quality control.
- Extractor: Black O-ring insert and spring – Enhances consistent extraction and cycling.
Built for Reliability & Smooth Operation
The chrome-lined components and phosphate finish of this BCG ensure exceptional wear resistance, while the precision-machined bolt and carrier provide smooth, consistent cycling. This makes it an outstanding option for duty, training, or defensive use where reliability is critical.
Ideal for New Builds or Upgrades
Whether you’re completing a new AR15 rifle build or upgrading an existing setup, the Aero Precision 5.56 Phosphate Bolt Carrier Group offers proven mil-spec performance, precision engineering, and the durability expected from Aero Precision components.
Specifications
- Caliber: 5.56 NATO / .223 Remington
- Carrier: 8620 Steel, M16 Profile
- Bolt: Carpenter 158 Steel, Shot Peened
- Finish: Mil-Spec Phosphate
- Gas Key: Chrome-lined and Properly Staked
- Testing: HPT & MPI Certified
- Compatibility: AR15, M16, M4 platforms
- Made in the USA
Product Information
| Manufacturer | Aero Precision |
|---|---|
| Platform | AR15 |
| Caliber | 223 Rem, 300 Blackout, 350 Legend, 5.56 NATO |
| Carrier Material | 8620 Steel |
| Bolt Material | C158 Steel |
| Finish | Phosphate |
| Color | Black |
| Compatibility | Standard AR15 components |
| Features | MPI Inspected, Shot Peened, FA Serrations |
| Made in USA | Yes |
| Weight | 11.52oz |
