High Quality Content by WIKIPEDIA articles! The Shoulder-Launched Multipurpose Assault Weapon (SMAW) is a shoulder-launched rocket weapon, based on the Israeli B-300, with the primary function of being a portable assault weapon (e.g. bunker buster) and a secondary anti-armor rocket launcher. It was introduced to the United States armed forces in 1984. It has a maximum range of 500 metres (550 yd) against a tank-sized target.