Cobalt Kinetics CK-Pro 5.56 NATO 10.8" M-LOK FDE Cerakote Receiver Set

The Cobalt Kinetics CK-Pro Receiver Set is a matched upper, lower, and handguard combination engineered for the AR-15 platform and chambered for 5.56x45mm NATO. Machined from aluminum and finished in Flat Dark Earth Cerakote, the set brings the upgraded components Cobalt Kinetics uses in their factory rifles to a configurable package for custom builds.

This configuration pairs the matched upper and lower with a 10.8" M-LOK handguard, providing a slim mounting platform for accessories along the 3, 6, and 9 o'clock positions. Every CK-Pro receiver set ships with the upper, lower, handguard, ejection port assembly, forward assist assembly, mounting screws, jam nut, and jam nut installation tool, giving a builder the parts needed to drop the set onto a barrel, bolt carrier group, lower parts kit, and buttstock to assemble a complete rifle.

Built on the standard AR-15 platform, the CK-Pro receiver set accepts standard bolts, barrels, and lower parts kits used across the AR platform, so a builder can finish a custom 5.56 NATO rifle around the matched set with off-the-shelf components.

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.