He picked up the ray gun and fired it at the alien.

The police used a water cannon against the demonstrators.

This story perfectly practices the principle of Chekhov's gun.

The central processing unit of this computer is very fast.

This speech synthesizer generates very high-quality voices.

He worked as a rear gunner in a fighter plane.

He entered the forest with a shotgun.

He received training to handle a heavy machine gun.

He is good at handling a light machine gun.

They are always together like the Three Musketeers at school.