Cobalt Kinetics CK-Pro URG 13.7" 5.56x45mm NATO Built Upper Receiver - FDE Cerakote

The Cobalt Kinetics CK-Pro URG (Upper Receiver Group) is a complete, ready-to-install 5.56x45mm NATO upper assembled around a 13.7" barrel. Shipped in the Built configuration, the CK-Pro URG comes with the barrel, bolt carrier group, and charging handle installed, ready to mate with any mil-spec AR-15 lower receiver.

The upper receiver is precision machined from 7075 T6 billet aluminum and finished in Flat Dark Earth Cerakote for corrosion resistance and the distinctive Cobalt Kinetics look. A 13" M-LOK handguard is cut from 6061 aluminum in a semi-monolithic, 7-sided profile that frees up the top Picatinny rail for optics and back-up iron sights while keeping the platform rigid and lightweight.

A 416R stainless steel barrel with mid-length gas delivers smooth, reliable cycling and accuracy potential for duty, defense, or range use. Pair the CK-Pro URG with your preferred lower to assemble a custom rifle configured exactly to your needs.