His gun clattered upon the running board of the car.
The gun clattered as it hit the sitting room floor.
Within a second the other two guns had clattered to the floor.
The gun he was holding clattered from his grasp and lay on the floor.
The man yelped and the gun clattered to the floor.
The gun clattered loose from his fingertips as they opened.
His guns clattered to the floor as three men pounced upon him.
Mark staggered backward, and the gun clattered on the floor between them.
The big man sprawled upon the floor beside the chair, his gun clattering across the room.
The gun clattered on to the floor and slid towards Johnny.