Manta Equaliser is a Manta Wolf ground cannon, initially designed to defend the Battle Fortress. The 'Equaliser' was not sold individually, but as apart of The Viper Vaporisor and The Manta Equaliser cannon pack.
Two battle cannons with firing mechanism. Guns elevate while gun commander has seat with integral control module.
- An actual firing mechanism
Below is an advert that was broadcasted on television channels throughout European in the mid to late 1980s.