He found the magic bullet to solve the problem.

This area has a lot of unexploded ordnance left over from the war, so caution is necessary.

Danma is my best friend.

He threw a grenade.

He moved agilely to avoid the enemy bullets.

He has a shotgun.

This cannon can fire grapeshot.

This clock is running using a mainspring.

He knows the horror of a napalm bomb.

He was involved in the development of guided missiles.