Some sort of impenetrable energy barrier or whatever that would absorb/reflect whatever fast kinetic blow/projectile would be ideal, IMO. I’d rather have the absorb version so I could just berate them for being violent instead of just getting killed by a bouncing bullet, lol.

An orbital cannon for 1 lb kinetic impactors. You’d probably want them to be in low earth orbit so they can strike quickly. This would of course require a constellation of satellite cannon systems, probably 2000 or so would be sufficient. Also, you’d want to be standing back from your target, probably 20 feet would be safe. Probably.

Also, they’ll have mixed results indoors, either putting holes through every floor above you or not quite reaching the target if you were at the base of a skyscraper. Probably not awesome for the skyscraper either…

Maybe someday everyone could have one of these for personal defense.

Omnidirectional body mounted claymore mine.

Just watch your hands.

maybe like a rapid mandatory communication field that makes talking it out feasible in all instances

A halberd, comparatively easy to use, long range and quite versatile.

Anti-tankie mines

Bag of little isopod shaped robots. They are fast moving with nuclear batteries and tungsten carbide shells and lots of sharp edges for chewing and burrowing through flesh. They can also dig into the ground a few inches and hibernate like cicadas to protect an area. Not wireless networked but instead have onboard processing for voice commands, use sense of smell for IFF and echolocation to coordinate their swarming.

Couldn’t stop a gun, but they are a deterrent against using it because if you shoot me we both die but you die in a more horrible way.

DMT clouds making them connect to the universe and lay down 4 minutes

This is why I have cannons loaded with grapeshot in every room of my house. Never know when I’ll need to remove a thief from existence.

Something that makes me disappear instantly and teleports me to the pub down the street. Cold beer is better than hot fight.

Probably some kind of autonomous thingy. Like, a drone with a Taser or some shit.

Balls that orbit around you (think magneto of x-men)

A small knife? A hand-held stabby thingy.

A tank full of sharks and gloves that dispense a sticky concentrated chum mixture with each hit. Get a couple good body blows in, knock them into the water, let nature (+/-) take its course.

Temporary blinding LED flash weapon, stink bombs, vomiting, reciting the Captain Ahab monologue from Moby Dick where he’s telling them to split their lungs with blood and thunder and crack their oars and backs.