In 2019, the Israeli Government has announced a $125 million contract of a planned 12-year, $280 million program to replace tracked self-propelled howitzers M109 in service with the Israeli armed forces. The international defense website Janes has released a picture on July 29, 2021, showing the SIGMA 155, a new wheeled self-propelled howitzer designed by the Israeli company Elbit Systems that could replace Israeli army M109 howitzers.
Like many armies in the world, Israel would like to replace tracked howitzers with wheeled howitzer which is lighter and can be deployed by fast reaction units using military transport aircraft. It also offers a high level of mobility and simplified logistics.
According to Janes, the new SIGMA 155mm will be based on the LVSR 10×10 military truck manufactured by the American company Oshkosh Defense. The LVSR is a family of trucks, based on a common 5-axle ten-wheel drive 10×10 chassis, that can be configured according to mission requirements.