SIGMA 155

The SIGMA 155 is a 155mm self-propelled howitzer manufactured by the Israeli defense company Elbit Systems being introduced into service in the Israel Defense Forces. It is slated to replace the M109 howitzer as the IDF's principal artillery system. The variant designed for Israeli use is the Ro'em, while the export variant is known as SIGMA. Both Ro'em and SIGMA are produced by Elbit America in Charleston, South Carolina. The SIGMA 155 consists of a 155mm L52 cannon mounted on an Oshkosh 10x10 LVSR based truck with a modified chassis, including an armored cabin to protect the crew. The modified truck is specially designed for SIGMA and called the Mobile Artillery Platform (MAP). The turret is remotely controlled, and the selection of ammunition rounds, loading, and gun laying functions are fully automated. The crew can conduct all firing operations from inside the cabin.