Dual-purpose gun
Calibre Weapon name Country of origin Period
57 millimetres ( 2.2 in ) Bofors 57 mm gun Sweden 1966-present
76.2 millimetres ( 3 in ) 76 mm/62 Allargato Italy 1962-present
76.2 millimetres ( 3 in ) OTO Melara 76 mm Italy 1964-present
76.2 millimetres ( 3 in ) AK-176 Soviet Union 1976-present
100 millimetres ( 3.9 in ) Type 79 100 mm naval gun People 's Republic of China 1973-present
100 millimetres ( 3.9 in ) 100 mm naval gun France 1961-present
100 millimetres ( 3.9 in ) AK-100 naval gun Soviet Union 1978-present
4 inches ( 101.6 mm ) QF 4 inch Mk V naval gun United Kingdom 1914-1940s
4 inches ( 101.6 mm ) QF 4 inch Mk XVI naval gun United Kingdom 1936-1950s
4 inches ( 101.6 mm ) QF 4 inch Mk XIX naval gun United Kingdom World War II
4.45 inches ( 113 mm ) QF 4.5-inch Mk I - V naval gun United Kingdom 1938-Cold War
4.45 inches ( 113 mm ) 4.5-inch Mk 8 naval gun United Kingdom 1972-present
120 millimetres ( 4.7 in ) Bofors 120 mm gun Sweden 1952-1985
4.7 inches ( 119 mm ) QF 4.7 inch Mk IX & XII United Kingdom 1928-1970
4.7 inches ( 119 mm ) QF 4.7 inch Mark XI gun United Kingdom 1941-1970
127 millimetres ( 5 in ) Otobreda 127mm/54 compact gun Italy Cold War-present
127 millimetres ( 5 in ) Otobreda 127mm/64 gun Italy 2012-present
127 millimetres ( 5 in ) 12.7 cm/50 Type 3 naval gun Japan 1928-1966
5 inches ( 127 mm ) 5/38 caliber gun United States 1934-1990s
5 inches ( 127 mm ) 5/54 caliber Mk 16 gun United States 1945-1993
List of dual-purpose guns
A dual-purpose gun is a naval artillery mounting designed to engage both surface and air targets.