[citation needed] In 1999, Saab AB purchased the Celsius Group, the then parent company of FFV-Carl Gustaf.[2] Along with Husqvarna Vapenfabrik, Carl Gustafs Stads Gevärsfaktori has provided the Swedish Army with small arms for over two centuries.The NIVA or Nytt infanterivapen (New Infantry Weapon) program was primarily intended to replace the Ak 4 battle rifle that was then in service with the Swedish Army.It was apparently also simultaneously intended to act as a lower cost alternative to use of the Carl Gustaf 8.4cm recoilless rifle.The Ak 5 is a modified version of the Fabrique Nationale 5.56 mm carbine FN FNC, produced with a folding stock and an option to mount the SUSAT sight from the British SA80.