Radian Model 1 Upper 14.5" 6mm Arc Flat Dark Earth

Radian Model 1 Upper Receiver Assembly

Radian Weapons has built a reputation on uncompromising quality, and the Model 1 upper receiver exemplifies that commitment. This complete upper assembly combines precision engineering with practical design to deliver a rifle that performs as well as it looks.

Design and Construction

Every Model 1 upper is hand-assembled by a trained gunsmith who personally inspects, test fires, and cleans the weapon before it leaves the shop. This meticulous approach ensures each unit meets Radian's exacting standards. The company uses only the highest quality raw materials and most precise CNC machining equipment available, resulting in tight tolerances and reliable performance.

Specifications

• Caliber: 6mm Arc
• Barrel Length: 14.5" (pinned for 16" overall length compliance)
• Twist Rate: 1:7
• Gas System: Mid-length
• Handguard: 14" M-Lok compatible rail
• Flash Hider: Dead Air KeyMo mount
• Charging Handle: Radian Raptor-SD (ambidextrous)
• Bolt Carrier Group: Radian Enhanced design
• Finish: Cerakote in Flat Dark Earth

Ambidextrous Operation

Fully ambidextrous controls make this upper equally comfortable for left and right-handed shooters. The Raptor-SD charging handle operates smoothly from either side, while the enhanced bolt carrier group delivers reliable cycling across a wide range of loads.

Warranty

Radian backs every Model 1 with a lifetime guarantee. This is not marketing—it reflects the company's confidence in its craftsmanship and materials.

The 6mm Arc cartridge offers modern ballistics in a compact package, making this upper suitable for hunting, sport shooting, and tactical applications where precision and efficiency matter.