The UK initially acquired 600 missiles, which it designated EXACTOR-1 in British service, later procuring a more advanced variant designated EXACTOR-2.
英軍最初購入了600枚導彈，它倆在英軍當中服役並且被命名為EXACTOR-1；後來英軍採購了更先進的型號並且命名為EXACTOR-2。