The Cobalt Kinetics CK-Pro Stripped Upper Receiver Group in 6.75-inch black (Cobalt Kinetics part no. CKPROURG675SBLK) is an AR15-platform upper receiver machined and Cerakote-finished by Cobalt Kinetics’ own gunsmith staff. It’s built for shooters and builders who want the same fit and finish as a complete CK-Pro rifle but plan to install their own barrel, bolt carrier group, and handguard. As a stripped receiver it ships without internal components, giving builders full control over the rest of the upper’s configuration. Cobalt Kinetics designed the CK-Pro line to give end users the same performance edge found in their completed rifles, and every receiver is machined to mil-spec tolerances for compatibility with standard AR15 lower receivers.

Key Specifications

• Machined as a stripped upper receiver, shipping without barrel, BCG, or handguard installed.
• Finished in black Cerakote for a durable, corrosion-resistant coating.
• Built to the CK-Pro 6.75-inch configuration within Cobalt Kinetics’ upper receiver group line.
• Machined from aluminum to mil-spec dimensions for compatibility with standard AR15 lowers.
• Assembled and Cerakote-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 include a barrel or bolt carrier group? No, this is a stripped upper receiver only; barrel, BCG, and handguard are sold separately.

Will this fit 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

Start your build with the same receiver Cobalt Kinetics’ gunsmiths use on their own rifles. Order it from our Cobalt Kinetics lineup of AR15 uppers, shipped fast from our Lubbock, Texas gun shop.