Elbit Systems of America will showcase its SIGMA 155mm self-propelled wheeled howitzer at the AUSA Global Force Symposium and Exhibition in Huntsville, Alabama, from March 24-26, 2026. Manufactured in Charleston, South Carolina, SIGMA is the only fielded wheeled howitzer built in the U.S., designed for the U.S. Army’s Self-Propelled Howitzer Modernization program.
The system mounts a 155mm L52 cannon on an Oshkosh 10×10 chassis with an armored cabin protecting its three-person crew: driver, gunner, and commander. It features a remotely controlled automated turret capable of 360-degree firing and compatibility with all U.S. Army 155mm munitions, including NATO-standard shells. SIGMA carries a 40-round onboard magazine and achieves a firing rate of eight rounds per minute.
With superior mobility over tracked systems, the 36-ton platform reaches speeds of 90-100 km/h and a range of 480 km, powered by a Caterpillar C15 diesel engine delivering 600 hp. It transitions from travel to firing mode in under 60 seconds, deploys hydraulic spades for stability, and supports shoot-and-scoot tactics. Firing range reaches 40 km, with export variants planned for 80 km.
“SIGMA was designed to deliver real overmatch, so Soldiers can fight, survive, and win in the most contested environments,” said Luke Savoie, President and CEO of Elbit America. The platform aligns with the U.S. Army’s Mobile Tactical Cannon program, which anticipates prototype requests by late March 2026 and selection in 2027 to replace towed M777 howitzers in Stryker brigades.
An exclusive media preview occurs at 8 a.m. on March 24 at the Von Braun Center.