The QF 4.5-inch is a British artillery piece developed during World War II. It was designed for use by the Royal Artillery and served as a versatile field gun, capable of firing high-explosive shells and other munitions. Its designation "QF" stands for "Quick Firing," indicating its ability to fire shells rapidly. This artillery piece was widely used in various conflicts, including the Korean War and Malayan Emergency. The QF 4.5-inch was known for its effectiveness in both direct and indirect fire roles, making it a valuable asset for ground forces during its operational period.