Cobalt Kinetics CK-Pro URG 5.56x45mm NATO 16" Built Upper Receiver - FDE

The Cobalt Kinetics CK-Pro URG (Upper Receiver Group) is a premium AR-15 upper assembly chambered in 5.56x45mm NATO and built around a 16" barrel. This is the Built configuration, which ships with the bolt carrier group, charging handle, and barrel installed, ready to mate with any mil-spec lower receiver to complete a rifle.

Finished in Flat Dark Earth Cerakote, this URG delivers the distinctive Cobalt Kinetics aesthetic along with durable corrosion resistance. As part of the flagship CK-Pro line, it is backed by Cobalt Kinetics' lifetime warranty. The CK-Pro URG is designed for shooters who demand the accuracy, reliability, and premium fit and finish that Cobalt Kinetics is known for.

The CK-Pro URG lineup is available in multiple barrel lengths and colors, giving builders flexibility to configure their ideal AR-15 upper. This 16" 5.56 NATO Built Upper in FDE is a turnkey solution for completing a high-end AR-15 build.