The Brownells BRN AR-15 A1 STRIPPED UPPER RECEIVER in black anodized finish provides a clean, durable platform for building or upgrading an AR-15 rifle chambered in 5.56x45mm NATO. This stripped upper offers reliable compatibility with AR-15 components, allowing you to customize barrels, handguards, and optics-ready configurations while maintaining a compact 7.7-inch form factor designed for streamlined builds. Crafted to the AR-15 standard, it accepts standard uppers and accessories, enabling seamless integration with aluminum receivers, forward assists, and dust covers as part of your ongoing rifle project. The anodized black finish delivers lasting corrosion resistance and a low-reflective profile ideal for field use, training, or competition environments. Whether upgrading an existing configuration or assembling a new rifle from the ground up, this upper receiver serves as a solid foundation that supports precise alignment, dependable cycling, and consistent performance with 5.56x45mm NATO ammunition. Designed for shooters who value versatility and a classic A1 aesthetic, it pairs well with commonly available components to create a reliable, ready-to-fire AR-15 platform.