It would be hard to build an actual "arm cannon" like that and retain its cool smooth/shininess, regardless of projectile launching ability.
Markio, if you didn't remember from the thread about it, man of us here are left handed, far above the national average I believe. I suppose the Judicator does look something like a beetle, but I'd rather not think about that. Just focus on the fact that it only has three visible legs (for stabilizing on surfaces, perhaps?)