It looks photoshopped, to me.
But a fairly well done photoshop. To the best of my knowledge, as of the time I left Bell, there were no AH-1Z's (and, with a four-bladed rotor that has to be one) with wheeled undercarriage. Now, since there is a wheeled undercarriage option for the Model 412 (you'd love it Brian, such nice spats), I could see a derivative of that fitted to a UH-1Y and then a variant of that added to the AH-1Z, but that would be a tricycle gear, not what's seen here. The gear shown here almost looks like it's off a MH-60B or other navalized H-60/S-70 variant.