The Faxon Firearms FX5500-U Ultralight Complete Upper - Black delivers a purpose-built, ultralight upper designed for performance and reliability in 5.56 NATO platforms, offering AR-compatible compatibility and factory precision from Americas trusted maker. This ION ULTRALIGHT 5.56 NATO complete upper integrates a robust steel, nitride-finished barrel with a 16-inch length and a welded 3-port brake to balance muzzle control with efficient heat management, making it well-suited for quick follow-up shots on the range or field use. The 13-inch carbon fiber M-LOK handguard provides a rigid, weigh-conscious silhouette that supports a wide range of accessories while maintaining a slim profile for maneuverability and reduced fatigue. Built to withstand demanding conditions, the upper is designed to pair seamlessly with compatible receivers, delivering consistent accuracy and smooth operation under varied environments. Made in the USA, this upper assembly emphasizes durability and craft, enabling shooters to customize their rifle with confidence for target engagement, precision outings, or reliable mid-range performance. The FX5500-U embodies Faxons commitment to lightweight, high-performance components that enhance AR-style platforms without compromising strength or versatility.