Cobalt Kinetics CK-Pro Urg 10.8" Stripped Upper Receiver

The Cobalt Kinetics CK-Pro Urg stripped upper receiver group gives AR-15 builders Cobalt's signature fit, finish, and styling as a foundation for a custom build. Precision-machined from aluminum and finished in Black Cerakote, this URG is built to resist corrosion and wear while delivering the clean, modern look that defines the CK-Pro line.

Designed for end users who want to upgrade an existing lower with Cobalt Kinetics' premium upper, this stripped URG ships without a barrel, bolt carrier group, or muzzle device - letting the builder choose their own chambering, barrel profile, and components. The integrated 10.8" rail offers generous real estate for optics, lights, and accessories up front, hitting a sweet spot between compact handling and full-length capability.

As part of Cobalt Kinetics' CK-Pro platform, the upper is engineered around the 5.56x45mm NATO AR-15 architecture and held to the same exacting standards found on the company's complete rifles. Whether the goal is a lightweight carbine, a competition rig, or a hard-use duty gun, the CK-Pro URG delivers the foundation for a high-end custom build.