A discussion in U.S. News and World Report. It’s an interesting question. If an arm is protected by the Second Amendment, how much does it matter how you bear it? But it also raises a question of how useful a drone is for self-defense. If the drone is bearing the arm, how is whatever you’re targeting a threat to you? But if your government decided to start stuffing people into cattle cars, I can imagine and armed drone would be damned useful.
I would be quite surprised to see the courts adopt a Second Amendment rationale for drones, but to be honest, I’m not sure how much it matters. If you can play with drones, and play with guns, putting guns on drones if the shit hits the fan isn’t much of a stretch. I’m not sure arming drones with firearms is even really the best use of them, even in a dire situation, like a government stuffing citizens into cattle cars.