The M982 Excalibur (previously XM982) is a 155 mm extended range guided artillery shell developed during a collaborative effort between the U.S. Army Research Laboratory (ARL) and the United States Army Armament Research, Development and Engineering Center (ARDEC).^[5] The Excalibur was developed and/or manufactured by prime contractor Raytheon Missiles & Defense, BAE Systems AB (BAE Systems Bofors) and other subs and primes in multiple capacities such as Camber Corporation and Huntington Ingalls Industries. It is a GPS- and inertial-guided
munition capable of being used in close support situations within
75–150 meters (250–490 ft) of friendly troops or in situations where
targets might be prohibitively close
to civilians to attack with conventional unguided artillery fire. In
2015 the United States planned to procure 7,474 rounds with a FY2015 total program cost of US$1.9341 billion at an average cost of US$258,777 per unit.^[6] By 2016, unit costs were reduced to US$68,000 per round.^[7] Versions that add laser-guidance capability and are designed to be fired from naval guns began testing in 2015.^[6][8][9] As of October 2018, over 1,400 rounds had been fired in combat.^[10]