So

 

looks genuine to me. my ko snarls rear legs don't touch because of the tail.

 

If the torso feels like it could be used as a cosh and the waist is loose I'd say it's real. That chrome looks like it's been sealed in stasis though.

 

The transparent Dino head on the KO is more darker. Yours is looks real.

 

Thanks for the feedback guys   It's the outstanding condition of the chrome that's had me worried to be honest, as the figure was loose. Suppose it was just a good find!

 

I guess it could have been reconditioned at some point. What matters is that it looks great and you're happy.