The 120 mm Long-Range trailer mortar was developed by Patria Vammas and Patria Vehicles to meet the requirements of the Finnish Defence Forces and is installed in the trailer unit of the NA-112 GT rubber-tracked all-terrain vehicle. The weapon involved is either the Patria Vammas 120 mm Long-Rangeor Standard model, both of which can be either fired from the trailer or dismounted for firing on the ground.
Maximum speed of the NA-112 GT on roads is 65 km/h and 4 km/h in water, using its tracks for propulsion. There is storage in the vehicle for 18 rounds of 120 mm HE mortar ammunition. Both time into and time out of action are immediate as there is no need to prepare the vehicle before firing. On carriage traverse is 24º either side and elevation is from +45º to +85º. Gross vehicle weight is 7,400 kg.
