The 2B1 Oka (Russian: "2Б1 Ока" - "Oka River"), is a Soviet 420 mm self-propelled heavy mortar, produced since 1957. It was designed to deliver tactical nuclear payloads.

Reference image

One with the longest barrel that measures up to 20 meters.

See also

• List of Ground Vehicles

External links

• Wikipedia: 2B1 Oka

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