Radian Model 1 Upper 18″ 6mm ARC – Brown | Precision AR Upper Receiver

The Radian Model 1 18″ 6mm ARC Upper in Brown represents the pinnacle of precision-built AR platform components. Engineered with the highest-quality raw materials and machined on the most advanced CNC equipment available, this upper receiver delivers a seamless blend of form, function, and long-range performance. The 6mm ARC cartridge offers outstanding ballistic efficiency, making this upper an exceptional choice for competitive shooters, hunters, and serious firearms enthusiasts who demand more from their build.

Every Radian Model 1 upper is hand-assembled by a trained gunsmith who personally inspects, test fires, and cleans each unit before it leaves the facility — a level of craftsmanship rarely found in production components. Fully ambidextrous controls ensure intuitive operation for both left- and right-handed shooters, while the refined Brown finish provides a distinctive, tactical aesthetic. Backed by Radian’s industry-renowned lifetime guarantee, this upper is built to perform today and last a lifetime.

Whether you’re completing a custom build or upgrading an existing rifle, the Radian Model 1 18″ 6mm ARC Upper is a premium investment in accuracy and reliability. Order online at Deep Roots Rifle Co or visit our gun store in Eustis, Florida, where our knowledgeable staff can help you find the right components to complete your ideal setup.