在1985年美国开始实施陆军远期迫击炮计划的第一阶段,它包括步兵连配用80毫米迫击炮;将英国皇家兵工厂81毫米中型迫击炮定型为M252;采用120毫米取代107毫米迫击炮。最近美国考虑可能采用120毫米装甲迫击炮。经过两年评价后,以色列苏丹公司的设计优于其它公司的而被选上。陆军已订购了部分迫击炮与弹药,拟于明年1～3月进行作战试验。美国陆军在第二阶段讨论与考虑的问题是在1995～2005 In 1985, the United States embarked on the first phase of the Army’s long-term mortar program, which consisted of an infantry company with an 80-mm mortar, an 81-mm medium-sized mortar from the Royal Arsenal at M252, a 120-mm supersede 107-millimeter Mortar. The United States recently considered the possible use of 120-mm armored mortars. After two years of evaluation, the design of Sudan in Israel was better than that of other companies. The Army has ordered some mortars and ammunition and plans to conduct operational tests from January to March next year. The issue that the U.S. Army discussed and considered in the second phase was between 1995 and 2005