Light Anti-tank Weapon

Light Anti-tank Weapon are built as disposable weapons. Once fired, they are discarded. These weapons use compressed air or some other recoilless non-backblast system for initial rocket launch, and are safe to use indoors! LAW dimentions: 60-70mm long and weighs 2kg. HLAW dimensions: 85-105mm long and weighs 5 kg

Source

 * Home of the Brave, pg.84
 * Blackhand's Street Weapons, pg.35