Internal workings.
air, metal,
gunpowder and bullets
Best known was the STEN gun.
The Winchester Rifle.
Adolf Hitler
Inside the barrel.
Inside Edition - 1988 Gun School was released on: USA: 30 August 2013
Inside Edition - 1988 Top Gun was released on: USA: 3 May 1989
Grooves on inside of the barrel= a RIFLED firearm- the grooves are known as rifling. Grooves on the outside of the barrel= fluting, done to reduce weight
Ballad of a Well-Known Gun was created on 1970-10-30.
inside a locked gun cabinet
If it is inside and the BB doesn't leave the building. It is against the law to shoot your BB gun outdoors.