Changes

[[Image:Glock30.jpg|right|200px]]

[[Image:Glock30.jpg|right|200px]]

The '''gun''' is a largely defensive [[weapon]] which fires a [[bullet]], [[dart]] or other projectile.

The '''gun''' is a mechanical [[weapon]] which uses expanding gas to fire a [[bullet]], [[dart]] or other projectile through a tube (its shaft). Guns are primarily defensive weapons.

The four main types of modern [[firearm]]s today are bolt-operated, pump action, semi-automatic, and automatic weapons. In a bolt-action weapon, each new [[round (ordnance)|round]] must be loaded manually, by moving the [[breech]] to eject the empty casing. In pump action guns (usually shotguns) a new round must be manually loaded by pulling back on pump of the gun, located underneath the barrel.  

The four main types of modern [[firearm]]s today are bolt-operated, pump action, semi-automatic, and automatic weapons. In a bolt-action weapon, each new [[round (ordnance)|round]] must be loaded manually, by moving the [[breech]] to eject the empty casing. In pump action guns (usually shotguns) a new round must be manually loaded by pulling back on pump of the gun, located underneath the barrel.