The M777 Portee was developed by BAE Systems as a private venture to meet a British Army requirement for LIMAWS (G) or Lightweight Mobile Artillery Weapon System - Gun program. The M777 Portee uses a revolutionary M777 155 mm/L39 lightweight field howitzer, adopted by the US Army, US Marine Corps, and a number of other countries. Maximum range of fire is 30 km with rocket-assisted projectile. This howitzer also fires Excalibur precision guided extended range projectiles with a maximum range of 4