Get out of here before I pull the trigger on this under-the-counter riot gun.

He had a riot gun slung under his arm.

They were stopped again at the edge of Little Rock by "two police cars with riot guns."

Those without such modifications were known as riot guns.

He was holding an 870 riot gun across his chest.

Two guards were standing at the banquet door with riot guns.

A second "elder" swung his riot gun up and into firing range.

He'd left the riot gun propped inside the side door he'd let himself in through.

He shifted his riot gun and opened the door.

You can have my riot gun if you want it.