Cobalt Kinetics CK-Pro Receiver Set 6.75" FDE Rifle

The Cobalt Kinetics CK-Pro Receiver Set 6.75" FDE Rifle is a precision-engineered upper and lower receiver assembly built to exacting military and law enforcement standards. Designed for shooters who demand reliability and accuracy, this receiver set serves as the foundation for a modern tactical rifle platform. The 6.75-inch barrel profile balances manageable recoil with effective velocity, making it ideal for close-quarters combat, home defense, and specialized operations where compact ergonomics matter without sacrificing performance.

Cobalt Kinetics receivers are machined from high-grade aluminum alloy and finished in Flat Dark Earth (FDE), a durable military-spec coating that resists corrosion and blends into diverse operational environments. The tight tolerances between upper and lower ensure minimal rattle and consistent zero retention through extended firing cycles. At 2.4 pounds, this receiver set weighs less than comparable options, reducing overall platform weight while maintaining structural rigidity. The CK-Pro designation reflects Cobalt's commitment to professional-grade manufacturing—each set undergoes dimensional verification to ensure compatibility with standard AR-pattern components and accessories.

Law enforcement, military personnel, and civilian tactical shooters benefit from the CK-Pro's modular design and proven reliability in high-stress environments. This receiver set accepts standard AR-15 internal components, trigger groups, and furniture, allowing customization to mission requirements. Installation requires basic gunsmithing knowledge or professional assembly; the receiver dimensions of 9.3 x 3.3 x 12.3 inches accommodate most handguard systems and optic mounting solutions. Whether building a patrol rifle, competition platform, or duty weapon, the Cobalt Kinetics CK-Pro 6.75" FDE provides a solid foundation for professional-grade performance.