The EP-48 Mortar Rifle was a weapon system developed by the Robotech Expeditionary Force and was seen being equipped by Cyclone riders during the Third Robotech War.
It fired a slow arching projectile which was extremely powerful but required an extremely skilled user in order for it to be fielded effectively. The accuracy of these rifles was low but the damage they inflicted was extreme. A typical magazine size contained 10 rounds though the rifle had a low rate of fire and an equally slow reload time.
These mortar rifles required practice to operate but made a master of these weapons a one man-army if used properly