The Radian Weapons Model 1 Upper (brand part no. R0900) is a complete 14.5-inch upper chambered in 6mm ARC, finished in grey. Every Model 1 is hand-assembled by a trained gunsmith who inspects, test-fires, and cleans it before it ships, and Radian backs it with a lifetime guarantee.

Key Specifications

• Chambered in 6mm ARC.
• 14.5-inch barrel length.
• Ships as a complete upper.
• Features fully ambidextrous controls.
• Each unit is hand-assembled by a trained gunsmith who inspects, test-fires, and cleans it before shipping.
• Backed by Radian’s lifetime guarantee.
• Part of Radian’s Model 1 upper line.
• Finished in grey.

Frequently Asked Questions

Does this include a lower receiver? No, this is sold as a complete upper only; a compatible lower is required to complete a firearm.

What controls does it use? It features fully ambidextrous controls.

What caliber is this upper chambered in? It is chambered in 6mm ARC.

Buy the Radian Weapons Model 1 Upper, 14.5in, Grey

Build a precision 6mm ARC upper with Radian’s hand-assembled, lifetime-guaranteed Model 1. Browse more of our AR15 uppers selection. Order the Radian Weapons Model 1 Upper, 14.5in, Grey from a Lubbock, TX gun shop; we’ll get it moving to you as soon as it is ready to ship.