Air pistols are firearms that use compressed air or gas to propel projectiles, typically pellets or BBs. They are often used for target shooting, training, and recreational purposes. Unlike traditional firearms, air pistols do not use gunpowder, making them quieter and generally safer for indoor use. These pistols come in various types, including CO2 powered, spring powered, and pneumatic models. They are popular among hobbyists and competitive shooters, as they can provide a realistic shooting experience without the need for a firearm license in many regions.