The 2nd hand worked with the trigger of the little blaster for me. Didn't try it on the regular blaster yet.
That's what I tried, the regular blaster, didn't the Ex.
It's ok because he can hold it right and still look cool, just would be cool too if he could it right handed too.
I guess maybe more often than not they are lefties, would make sense with the holder being on the left, the idea being to quick draw and fire, you're not going to draw it, throw it in your other hand and then fire, too late.
Like I said, being a righty, it just seems natural to pose figures as righty.