Rise Armament WatchmanXR 6mm ARC 18-inch Complete Upper

The Rise Armament WatchmanXR is a complete upper receiver built for the AR-15 platform featuring an exceptionally accurate 18-inch 416R stainless steel threaded barrel. It ships as a finished assembly with an M-LOK handguard and anodized black exterior, providing a ready-to-install option for precision-oriented builds. The barrel uses a 1:7 twist rate tailored for the 6mm ARC cartridge.

Key Specifications

• The caliber is 6mm ARC.
• The barrel measures 18 inches.
• The barrel is made from 416R stainless steel.
• The barrel uses a 1:7 twist rate.
• The finish is anodized.
• The exterior color is black.
• This product is a complete upper receiver for the AR-15 platform.
• The handguard style is M-LOK.
• The product type is listed as Upper.
• The barrel is threaded.

Engineered for accurate, long-range performance, the WatchmanXR 6mm ARC complete upper pairs a precision 416R stainless barrel with a durable anodized finish and modular M-LOK handguard. Its ready-to-install configuration makes it a practical choice for shooters building a dedicated precision or hunting AR-15 platform who want a reliable, high-quality upper without sourcing multiple separate components.