A firing gun: an old gun that fires (no bullet in the icon please). Idea behind this: some machine / device set into firing mode. Please make the icon look like this icon: in combination with this icon: (do not draw it like it's a big explosion, just a tiny explosion. No barrel smoke please, and turn the explosion icon 90 degrees counterclockwise as if the gun just went off shooting to the left). The latter icon is clearly the fire explosion coming out of the barrel of the gun. This way the icon displays a firing mode of a machine, a gun, a device, etc. Maybe tilt the gun a bit less horizontal so that it is clear to the user that the gun went off (like you see in the movies). Thanks a lot!