The Ak 5 or Automatkarbin 5 ("automatic carbine 5", "automatic carbine" being the Swedish term for assault rifle) is the Swedish version of the FN FNC assault rifle with certain modifications, mostly to adapt the weapon to the partially subarctic Swedish climate. The Ak 5 is the service rifle of the Swedish Armed Forces. The Ak 5 replaced the Ak 4 (a licensed-produced version of the Heckler & Koch G3) in Swedish service. Later versions also accept the Colt M203 grenade launcher attachment. The current standard issue version is the Ak 5C.