The machine gun is a gun with automatic operation, chambered for a caliber ammunition less than 20 mm, similar weapons heavier gauge being generally .
The machine gun is a gun with automatic operation, chambered for a caliber ammunition less than 20 mm, similar weapons heavier gauge being generally .
The machine gun is a gun with automatic operation, chambered for a caliber ammunition less than 20 mm, similar weapons heavier gauge being generally .
