Switzerland. Canton Ticino. Cureglia is a municipality in the district of Lugano. "Tiratori del Gaggio" society. Shooting range. Marco Castelli shoots his Fass 90 loaded with bullets on targets distant 300 meters. The assault rifle SG 550, also called Fass 90, is used by the Swiss Army. The SG 550 is an assault rifle manufactured by Swiss Arms AG (formerly Schweizerische Industrie Gesellschaft) of Neuhausen, Switzerland. "SG" is an abbreviation for Sturmgewehr, or "assault rifle". The rifle is known as the Fass 90 or Stgw 90. An assault rifle is a selective-fire rifle that uses an intermediate cartridge and a detachable magazine. 24.10.2020 © 2020 Didier Ruef