The GN-XIII is armed with GN Beam Sabers, GN Vulcans, GN Claws and GN Shield like its predecessors, but its primary armament is changed to the new GN Lance that can be used for both melee and ranged combat. To handle various operations, the GN-XIII has a variety of optional weapons such as the GN Field Hand Grenade, the NGN Bazooka, and its predecessors' GN Beam Rifle. While the GN-XIII has the same shoulders and waists hardpoints as the GN-XII, it does not have any close or ranged combat variant like the latter, and this is due to cost and training issues. However, an amphibious assault variant of the GN-XIII, the GNX-612T/AA Superbia GN-X, is later developed. According to some sources, the GN-XIII also served as the base unit for the development of A-Laws' GNX-704T Ahead. In AD 2314, the ESF Forces adopted the GNX-803T GN-XIV as its new mainstay mobile suit, and a majority of the GN-XIV units at that time are retrofitted GN-XIII. Even then, some GN-XIII remains in operation with the ESF Forces, and the Colony Public Corporation bought some units (with armament restrictions) for its own use.