Radian Model 1 Upper | 6mm ARC | 14.5 in | R0898

The Radian Weapons Model 1 complete upper is a factory-assembled AR-15 upper receiver assembly chambered in 6mm ARC with a 14.5-inch steel barrel. The design emphasizes precision machining and quality components; each unit is hand-assembled, inspected, test fired, and cleaned during final assembly. Features include an M-LOK handguard and a black exterior. The product listing indicates a lifetime guarantee from the manufacturer.

Product Specifications

• The manufacturer is Radian Weapons.
• The model is listed as the Model 1 Complete Upper (R0898).
• The manufacturer part number is R0898.
• The UPC is 810098420907.
• The product type is Upper.
• The subcategory is Complete Upper Receivers.
• The caliber/gauge is 6mm ARC.
• The barrel measures 14.5 inches.
• The barrel material is listed as Steel.
• The handguard style is M-LOK.
• The fit is specified as AR-15.
• The color is listed as Black.
• The barrel is listed with a 1:7 specification.
• Accessories included or noted with the product include a Handguard.

This upper is built around precise CNC machining and quality raw materials, then finished and assembled by hand. Its configuration—6mm ARC caliber with a 14.5-inch steel barrel and M-LOK handguard—makes it suitable for precision-focused shooting setups and matched builds where a compact-profile AR-15 upper is desired. The assembly and inspection process described by the manufacturer highlights attention to detail and long-term support.