Originally Posted by Mr. Dent
The closer I look, it looks like those are just the handles for controlling the wings, not guns...although guns may be built-in.
No, it definitely looks like guns; which would be in keeping with his Ultimate costume, that this is based on. The wings are strapped to his arms with those belts you see.
I don't think the guns are mounted to the wings, as some have suggested; it'd be pretty awkward to reload or clear jams if they're in a fixed position.