The Cobalt Kinetics CK-Pro Upper Receiver Groups were designed for end users that want to upgrade their current ARs to have the same performance edge featured in completed platforms. All CK-Pro URGs are expertly built by gunsmith staff. Built URGs are test-fired for function before leaving out the door to the customer.
| FireArm | No |
| Caliber | 5.56x45mm NATO |
| Barrel Length | 16" |
| Receiver Finish | Black Cerakote |
