You can't actually put weapons on them, nope. Body 0 makes them microdrones. I'm not sure you can really do anything aside from look cool with them, although maybe someone can find some clever application, but I think they are ultimately just a fashion statement. Actually, you can put a self-destruct termination system on them, which turns them into bombs.... I'm not sure I'd want that on my head, but, hey. You can also upgrade the sensors and use them as spies, I guess.