Gas gun

Gas gun may refer to:

• Air gun, a gun that fires projectiles by means of compressed air or other gases
• Airsoft gun, a replica gun used in airsoft sports
• Astronaut propulsion unit, a device used to move an astronaut relative to the spaceship during a spacewalk
• Dynamite gun, any of a class of artillery pieces that use compressed air to propel an explosive projectile
• Gas pistol, a non-lethal weapon used for self-defense and other purposes
• Gas-operated reloading, a system of operation used to provide energy to operate locked breech, autoloading firearms
• Holman Projector, a naval anti-aircraft weapon
• Light-gas gun, a highly specialized gun designed to generate extremely high velocities
• M61 Vulcan, a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon
• Potato cannon, a pipe-based cannon that uses air pressure, or combustion of a flammable gas to fire projectiles, usually potatoes
• Propane cannon, a type of bird scarer
• Riot gun, a type of firearm used to fire non-lethal ammunition for the purpose of suppressing riots or apprehending suspects with minimal harm or risk
• Vortex ring gun, a non-lethal weapon that fires gas vortex rings