TKB-059
TKB-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, an earlier experimental assault rifle that also... Wikipedia
Designer: Gennadij A. Korobov
Barrel length: 430 mm
Caliber: 7.62mm
In service: Prototype only
Rate of fire: 1400–1800 rounds/min