High Quality Content by WIKIPEDIA articles! The 130 mm towed field gun M-46 M1954 (Russian: 130-мм пушка M-46 обр. 1954 г.) is a manually loaded, towed 130 mm artillery piece, manufactured in the Soviet Union in the 1950s. It was first observed by the west in 1954. There is also a Chinese copy, called Type 59.