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gas gun

n. a gun that fires gas shells

Gas gun

A gas gun can be:

  • A projectile-firing gun powered by compressed air:
    • Air gun
    • Airsoft gun
  • A Less-lethal launcher, especially when loaded with CS gas grenades.
  • A Gas pistol
  • Devices described as pneumatic cannons:
    • Spud gun
    • M61 Vulcan (also hydraulically operated)
    • Dynamite gun
  • A gun that fires a stream of gas. This can be for these purposes among others:-
    • To generate a loud noise as a bird scarer
    • For propulsion in space: see Manned Maneuvering Unit#NASA "gas gun"
    • Light-gas gun, a velocity-generating device used in physics experiments.