The EVO-105 self-propelled artillery system developed by Samsung Techwin mounts an M101 barrel assembly, recoil system, and breech onto the bed of a Kia KM500 (6×6) 5-tonne truck chassis. The heart of the system is the solid, dependable M101A1-series of 105mm light artillery piece (and M2HB .50 caliber heavy machine-gun is carried in a ring mount over the truck cab for close-in vehicle defense). With a range of over 11km, the M101A1 has earned a well-deserved reputation for reliability, speed and accuracy. The gun’s 11.3 km range meant it would act “like a mortar” in an infantry fire-support role and complement the longer-range 155 mm K9. Company officials said the system was quicker to deploy, fire, and reload than towed 105 mm guns and has a maximum rate of fire of 10 rounds a minute. Sustained rate of fire is typically three rounds a minute with a crew of five. The system is extremely fast into action, requiring less than sixty seconds to stop and shoot, versus four and a half minutes for its towed counterpart. There is no need to dig a recoil pit, and the weapon retains its high angle of elevation. Displacing from a position is even faster, as the EVO requires only 30 seconds to start its movement.