TKB-059 (ТКБ-059) was a Soviet three-barrel bullpup assault rifle, capable of fully automatic fire, chambered for the 7.62 x 39 mm round and manufactured by the Tula State Arsenal in 1966. It was based on the Pribor ZB (Прибор 3Б) assault rifle (Опытный, на базе «прибора 3Б»). Both weapons were developed by the small arms designer G. A. Korobov.
The weapons used a tripled 7.62 x 39 mm magazine with a capacity of 90 rounds, with each barrel independently fed from the magazine. The intent was to create a weapon with an increased hitting probability and stopping power. As a project, it was developed to counter the American weapon project SALVO.
TKB-059 can provide capabilities of high rates of fire by firing intermediate calibre rifle rounds in salvos suitable enough for a soldier to handle recoil force during full automatic fire without harsh recoil. It can be fired ambidextrously as the cartridge ejection is downwards behind the magazine area.