He collected antique horse pistols.

Signal pistols are used to send distress signals in emergency situations.

The athletes lined up at the starting line, waiting for the sound of the starting pistols.

He collected antique duelling pistols.

He collected antique dueling pistols.

He collected cap-pistols as a hobby.

He collected cap pistols as a hobby.

The athletes lined up at the starting line, waiting for the sound of the starter's pistols.

The athletes lined up at the starting line, waiting for the sound of the starter pistols.

The police officers were armed with service pistols.