The Faxon Firearms URFAXFAC338 upper receiver in .338 ARC combines rugged, aircraft-grade aluminum with a precise black anodized finish to deliver a durable foundation for AR-15 builds that demand long-range capability and consistent performance. This upper receiver is designed to handle the .338 ARC cartridge, offering enhanced ballistic performance and improved sectional density for precision shots at extended distances, while maintaining the familiar ergonomics and compatibility of the AR-15 platform. Built to withstand the rigors of field use, the URFAXFAC338 features tight tolerances, smooth milling, and a robust construction that supports dependable cycling and repeatable accuracy from the bench to the backcountry. Its aerospace-grade finish not only resists wear and corrosion but also provides a clean, low-friction surface that aids in reliability during rapid follow-up shots. This upper receiver is ideal for hunters, competition shooters, and serious enthusiasts looking to elevate their AR-15 setup with a purpose-built .338 ARC component that pairs well with compatible barrels, bolts, and optics for precision shooting, game processing, and long-range engagements.