Product Description The Sharps Bros. SBUR04 Billet Upper Receiver is a premium AR-15 upper built from durable 7075-T6 aluminum with a black anodized finish. Designed to match Sharps Bros. lowers while maintaining a mil-spec front end, it is compatible with standard AR-15 barrel nuts and most AR-15 handguards (including options with rear-facing tabs). This upper ships with a forward assist kit and dust cover installed, making it an excellent foundation for a reliable rifle or pistol build. Product Highlights Billet AR-15 upper receiver machined from strong 7075-T6 aluminum Black anodized finish for corrosion resistance and a clean, professional look Mil-spec front end compatible with AR-15 barrel nuts and a wide range of AR-15 handguards Includes forward assist kit and dust cover installed for added build value Designed for popular AR-15 chamberings including .223/5.56, .224 Valkyrie, .300 BLK, and 6.5 Grendel Specs Brand: Sharps Bros. Manufacturer Part Number: SBUR04 UPC: 850869008835 Platform Fit: AR-15 Receiver Type: Billet upper receiver Material: 7075-T6 Aluminum Finish/Color: Black Anodized / Black Included Components: Forward assist and dust cover (installed) Compatible Calibers (per manufacturer/retailer listings): .223/5.56, .224 Valkyrie, .300 AAC Blackout, 6.5 Grendel Approx. Weight (listed): 9 oz 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.