Heavy rifled mortar successor
mediumThe M30 was a 107 mm rifled mortar developed after World War II to replace earlier 4.2 inch systems.
The M30 was a U.S. 107 mm heavy mortar developed in the early Cold War period. Britannica notes its distinctive obturation approach for rifled mortar ammunition, while general reference material places it in the heavy mortar class above the more mobile 60 mm and 81 mm infantry systems.



