57 mm artillery

The '''ZSU-57-2 Ob'yekt 500''' is a Soviet self-propelled anti-aircraft gun (SPAAG), armed with two 57 mm autocannons. 'ZSU' stands for Zenitnaya Samokhodnaya Ustanovka (), meaning "anti-aircraft self-propelled mount", '57' stands for the bore of the armament in millimetres and '2' stands for the number of gun barrels. It was the first Soviet mass-produced tracked SPAAG after World War II. In the USSR, it had the unofficial nickname Sparka (), meaning "twin mount," referring to the twin autocannon with which the vehicle is armed.

57 mm anti-aircraft gun

The ZiS-30 was a light self-propelled anti-tank gun built for the Soviet Red Army in 1941. It was based on the Komsomolets armoured artillery tractor. They were successful vehicles, but production was limited by the number of Komsomolets tractors still in use.

1940s towed 57 mm anti-tank gun of British origin

1940s towed 57 mm anti-tank gun of Soviet origin

The ASU-57 was a small, lightly constructed Soviet assault gun specifically designed for use by Soviet airborne divisions. From 1960 onwards, it was gradually phased out in favour of the ASU-85.

1971 Swedish naval artillery

naval Gun

thumb|right|ZIF-31 Naval AA Guns The AK-257 is a Soviet 57mm naval gun, originally a land ZIF-31 L/70 57mm (Type 66/76) cannon. During the early 1950s, development began of naval versions of the 57x348mmSR 70 calibre weapon which had entered service with the Soviet army in 1950 as the S-60. This was to be a supplementary weapon for larger warships and as the main gun armament for minesweepers and auxiliaries.

type of fortress gun/infantry gun

Japanese army armament during WWII

type of tank gun/armored train gun