I will point out ]again[ ]that a gun is meant to maim or kill.
What? No. Of course not. Here's a few guns I have that we're not at all designed to kill anything:
Flare gun: I suppose you could start a fire with one that in turn burned someone to death, but not at all what it was designed for. Signaling distress? Perfect for that.
Nail Gun (Powder Actuated): This thing fires steel nails into concrete with the help of a .27 caliber propellant charge. Very useful for anchoring mud sills to a foundation. Yeah, you could probably kill someone with it at point blank, but then again you could also do that with a hammer and that's not what either are designed for.
Nerf Gun: There are many like it but this one is mine. To kill with it I would have to shoot the foam dart into someone's mouth and they would in turn have to choke on it. Not very effective for killing, but loads of fun for running around indoors with the kids on a rainy day.
Tranquilizer Gun: Ok, I don't actually own one, but sometimes I really wish I did when the kids get a little too out of hand…
Tazer/Stun Gun: Will shock the living shit out of you but hopefully doesn't kill you. If it does, that's a mistake, it wasn't designed to do that.
Now, in the spirit of what your asking, the vast majority of firearms are designed to indeed kill people and/or animals. Yes, there are those that are purposefully designed to excel at competitive shooting sports/events. However, the origins of those competitions were training for hunting or combat so technically the gun is just adapted to give an edge in competition but still based on a tool who's primary intent is to kill. You could probably bring a similar argument for BB guns, paintball guns, and Nerf guns. While not themselves designed to kill they are a training mechanism for marksmanship and combat. You certainly can't kill with those but in the spirit of the question they are somewhat adjacent in origin
yes. this.