No, they are not compatible with the Nock V2 flip-chip system. They can only be used with the Nock V3 guards.
The mounting brackets can be attached directly to compatible grips or to the handlebar using the plastic ring mount.

We take the utmost care to ensure the quality of our products. Therefore, our warranty covers any manufacturing defects discovered upon receipt or during installation of the handguards.
However, since the role of hand guards is to act as a safety mechanism in the event of a hard impact—just like a helmet or other protective gear—we cannot cover damage resulting from falls inherent to mountain biking.