Cobalt Kinetics CK-Pro 11.8" Black AR-15 Receiver Set

The Cobalt Kinetics CK-Pro receiver set is the premium foundation for a custom AR-15-pattern build. The upper and lower receivers are machined from 7075 T6 billet aluminum, paired with an 11.8" M-LOK handguard cut from 6061 aluminum, all finished in Black.

Designed for builders who want the CK-Pro performance edge in their own configuration, the set ships with the upper receiver, lower receiver, handguard, ejection port assembly, forward assist assembly, all necessary mounting screws, the jam nut, and the jam nut installation tool - everything needed to mate the upper and lower into a complete AR-platform receiver assembly.

This is a serialized receiver set sold as a builder's kit - it is not a complete firearm. Additional components such as a barrel, bolt carrier group, trigger group, buffer and spring, stock or brace, and pistol grip are required to complete a functional rifle.

DISCLAIMER: Firearms and receivers are subject to state-specific shipping restrictions and must be transferred through a valid FFL dealer. Please visit our shipping restrictions page to review all applicable restrictions for your state. Subject to change.