TKB-010

The TKB-09 (ТКБ-09) was a Soviet delayed blowback assault rifle chambered in 5.45×39mm. It used a bolt attached to a spring in a tube above the barrel. The TKB-09 was intended to force the weight forward as means of increasing accuracy.^[1] TKB-010 was the variant chambered in 7.62×39mm.^{[2][additional citation(s) needed][3]}