Precision milled upper receiver for 223 Remington/5.56 NATO with flat-top sight configuration. American-made steel construction with professional-grade machining and durable black finish.
Black Rain Ordnance manufactures this upper receiver to exacting standards, employing master machinists who understand that precision is not negotiable. Founded on the principle of building only what the makers would personally trust with their own lives, this receiver represents genuine American craftsmanship.
A quality upper receiver is the foundation of a reliable rifle. This milled design—rather than forged—offers tighter tolerances and exceptional longevity. The flat-top configuration provides a clean platform for optics or iron sights, giving you flexibility in how you set up your rifle.
Black Rain Ordnance's commitment to American manufacturing means you're supporting domestic production while receiving a component built to professional standards. Whether you're building a precision rifle or upgrading an existing platform, this receiver delivers the quality and reliability serious shooters demand.