TKB-059 (ТКБ-059) was a Soviet three-barrel bullpup assault rifle, capable of fully automatic fire, chambered for the 7.62×39mm round and manufactured by Tula Arms Plant in 1966.
It was based on the Device 3B (Прибор 3Б), an earlier experimental assault rifle that also had three barrels.
[3] Both weapons were developed by the small arms designer German Aleksandrovich Korobov.
[1] The TKB-059 could be fired ambidextrously as the spent cartridge casings ejected downwards behind the magazines.
[citation needed] The TKB-059 prototype can now be seen at the Tula arms museum.