The missile uses a tandem-charge HEAT warhead in order to defeat explosive reactive armour fitted to many armored vehicles today; a much smaller-diameter warhead at the front of the missile body and a larger main warhead at the rear. Locating the main warhead at the rear of the missile body provides the correct stand-off needed for the optimum effectiveness of the Eryx warhead without the need of a complex collapsible nose probe (e.g. the TOW), which is standard on most antitank missiles today. This simple solution keeps the missile's cost extremely low when compared to other antitank missiles but also for a compact missile design that can be produced in mass quantities.