I received the optic mount that fits the Race Green, and frankly I’m a bit disappointed in CZC. Installing the Thumb Rest over the optic mount looks, well, like a Rube Goldberg installation. Mounting a countersink device over a countersink device… Mounting a thumb rest that has a frame cut out flange over the red dot mount that doesn’t have a flange cut out… Really disappointed in CZC’s design and engineering in this application. For now I think I will use the optic mount without the thumb rest until I can find a throttle that blends with the optic mount or CZC decides to “blend” the thumb mount into the optic mount.