Meet the Byrna HD: a non-lethal self-defense weapon powered by compressed air (CO2) that shoots .86 caliber round kinetic and chemical irritant projectiles. It can disable threats from up to 60-feet away. The Byrna HD Max Kit comes with 8-gram cartridges, inert and kinetic projectiles and everything you need to get started.
This weapon shoots projectiles that create a pepper irritant cloud that disperses into the air to disable attackers. It does not require a special permit either. You can find out more about it here.