Product DescriptionThe Black Rain Ordnance Milled Upper Receiver is a precision-machined upper receiver designed for modern sporting rifle builds. Constructed from billet aluminum and finished in black anodizing, it offers a durable, high-quality foundation for a .223 Remington/5.56 NATO flat-top upper assembly. Its flat-top configuration supports a wide range of optics and sighting solutions while delivering the clean, rigid feel of a milled receiver.Product Highlights Billet aluminum construction for a robust, precision-machined upper receiver Black anodized finish for corrosion resistance and a sleek, professional look Flat-top (Picatinny-style) top rail profile for flexible optic/sight mounting Made for modern sporting rifle upper builds in .223 Remington / 5.56 NATO Milled receiver design for a premium fit and appearance Specs Brand: Black Rain Ordnance Product Type: Upper Receiver Model: Milled Caliber: .223 Remington / 5.56 NATO Top Configuration: Flat Top Material: Billet Aluminum Finish/Color: Black Anodized Manufacturer Part Number: BRO-MUR-2 UPC: 713757204903 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.