Alexander Arms AR15 Standard Upper 16 Inch 300 AAC Blackout AR Compatible

The Alexander Arms ALEXANDER AR15 STANDARD UPPER delivers a rugged AR-15 upper receiver assembly designed for reliable performance in 300 AAC Blackout applications, combining a 16-inch steel barrel finished in matte black with a precise 1:7" twist to optimize stabilization of subsonic and supersonic loads. Built for AR compatibility, this upper integrates seamlessly with standard upper receivers and is ready to partner with AR-15 accessories to tailor your build for hunting, target shooting, or tactical scenarios. The combination of a durable steel barrel, clean chambering, and the streamlined dimensions (4.40 x 4.45 x 36.75) ensures a balanced profile that supports accurate, repeatable shots from a practical field-ready platform. Alexander Arms emphasizes dependable performance across a range of commercially available 300 AAC Blackout ammunition, enabling efficient barrier penetration and versatile engagement options while maintaining a clean, single-paragraph flow for easy integration into product listings. The upper is designed to simplify assembly and maximize reliability in real-world use, whether you're upgrading an existing rifle or assembling a dedicated blackout setup for versatile sporting and training scenarios.