The Cobalt Kinetics CK-Pro Stripped Upper Receiver Group in the 15.5-inch CKG configuration (Cobalt Kinetics part no. CK-PRO-URG-16-S-CKG) is an AR15-platform upper receiver machined by Cobalt Kinetics for builders who want the same fit and finish as a complete CK-Pro rifle. As a stripped receiver, it ships without a barrel, bolt carrier group, or handguard, giving builders full control over the rest of the upper’s configuration. Cobalt Kinetics machines the CK-Pro line to give end users the same performance edge found in their completed platforms, and the receiver is built to mil-spec tolerances for compatibility with standard AR15 lowers.

Key Specifications

• Machined as a stripped upper receiver, shipping without barrel, BCG, or handguard.
• Finished in Cobalt Kinetics’ CKG finish for a distinct look within the CK-Pro line.
• Built to the 15.5-inch CK-Pro configuration within Cobalt Kinetics’ upper receiver group series.
• Machined from aluminum to mil-spec dimensions for compatibility with standard AR15 lowers.
• Machined and finished in-house by Cobalt Kinetics’ own gunsmith staff, to the same tolerances used across the CK-Pro line.

Frequently Asked Questions

Does this receiver come with a barrel or BCG installed? No, this is a stripped upper receiver only; the barrel, BCG, and handguard are sold separately.

Is this compatible with a standard mil-spec AR15 lower? Yes, it’s machined to mil-spec dimensions for compatibility with standard AR15 lower receivers.

Buy the Cobalt Kinetics CK-Pro Stripped Upper Receiver Group (15.5-inch CKG)

Build on the same receiver platform Cobalt Kinetics uses for its complete rifles. Order it from our Cobalt Kinetics lineup of AR15 uppers, shipped fast from our Lubbock, Texas gun shop.