Radian Weapons 18" 6mm ARC Upper Receiver – FDE Cerakote, AR-15 Platform

The Radian Weapons 18" 6mm ARC upper receiver assembly is built for precision at extended range on the AR-15 platform. Chambered in 6mm ARC, this upper delivers superior ballistic performance over traditional 5.56 for long-range target shooting and hunting applications. The 18-inch barrel length optimizes velocity and accuracy while maintaining a manageable overall profile.

Features a durable FDE Cerakote finish on forged 7075-T6 aluminum upper receiver. This is a complete upper assembly ready to mate with any mil-spec AR-15 lower receiver. Includes bolt carrier group and charging handle. Installation requires only standard AR-15 takedown pins—no gunsmithing needed.

• Caliber: 6mm ARC
• Type: Complete Upper Assembly
• Compatible Lower: Mil-Spec AR-15
• Barrel Length: 18"
• Material: Forged 7075-T6 Aluminum Upper Receiver
• Finish: FDE Cerakote
• Includes: Bolt Carrier Group, Charging Handle
• Installation: Direct fit to mil-spec AR-15 lowers, no gunsmithing required