Definitions for "air gun"
A kind of gun in which the elastic force of condensed air is used to discharge the ball. The air is powerfully compressed into a reservoir attached to the gun, by a condensing pump, and is controlled by a valve actuated by the trigger. The common BB gun is a type of air gun.
Compressed air powered nozzle, it is used for the spray application of paint, etc.
See Gun, Air.
Keywords:  riveting, pneumatic, hammer
A pneumatic riveting hammer.
a terrific way to teach firearms safety and discipline to a young shooter