The Cobalt Kinetics CK-Pro Upper Receiver Group is designed for shooters who want to upgrade their AR platform with the same performance edge found in completed builds, delivering a turnkey path to a more precise, reliable upper despite starting from a stripped receiver. Expertly assembled by our gunsmith staff, these URGs are built to exacting standards and test-fired for function before leaving the shop, ensuring you receive a proven, ready-to-fit component. This CK-Pro URG features a 6.75-inch configuration finished in Black Cerakote for exceptional durability and corrosion resistance, making it a resilient choice for demanding field use, competition, or precision work. The stripped receiver format provides flexibility to pair with your preferred barrel, gas system, and handguard to tailor cycling, timing, and ergonomics to your exact needs, while the Cerakote finish helps maintain a low-profile, rugged appearance under tough environments. Whether upgrading an existing rifle or building a dedicated high-performance platform, the CK-Pro Upper Receiver Group helps you achieve a refined, reliable AR experience with consistent fit and finish that supports repeatable accuracy and smooth operation.