In June 2012, Golf Battery, 2nd Battalion, 11th Marines, out of Camp Pendleton, California, dropped the M982 Excalibur round on insurgents at a range of in Helmand Province, Afghanistan.
In 2014 the US military began fielding several upgrades to their M777 howitzers including new liquid crystal display units, software updates, improved power systems, and muzzle sensors for onboard ballistic computing.