A gun drone for consumer purchase? Hmm. Of course the military may have it, but a civilian buying one? Unconvinced...unless you've got a very good reason for wanting one / specific licence for such a thing (if there is one), I just don't see it. Best of luck
Ah, I see. If it was just the word "top", it would be beautiful. Got a bit of a problem with "top gun" in this case, IMONot thinking 'gun drones', but drones along the lines of "The meaning of TOP GUN is one who is at the top (as in ability, rank, or prestige)."
I can't seem to see any value in this name.