The Faxon Firearms URSSB556 ARAK-21 Complete Upper 5.56 Black delivers a purpose-built upper assembly that pairs precision engineering with versatile performance for AR-style platforms. Built around a 16-inch 5.56x45mm NATO barrel finished in black, it provides reliable accuracy and consistent velocity for responsible hunting, target shooting, and training applications. The upper features a Black Anodized receiver finish that resists wear and corrosion while maintaining a low-profile silhouette ideal for tactical setups or sport-inspired builds. Designed to integrate smoothly with compatible receivers, this complete upper offers a streamlined route to upgrading or assembling a rifle with improved reliability, enhanced gas system timing, and proven control under rapid-fire conditions. The ARAK-21 platform emphasizes modularity, enabling flexible handguard options, accessory placement, and optimized balance for steady follow-up shots. Whether youre refining a dedicated build, replacing a worn component, or exploring a versatile centerfire setup for range days, this complete upper gives you a robust foundation with the performance characteristics you expect from Faxon Firearms.