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]}

TKB-09
Type	Assault rifle
Place of origin	Soviet Union
Production history
Designer	German A. Korobov
Manufacturer	Tula Arms Plant
Specifications
Mass	2.48 kg w. empty magazine
Length	860 mm
Barrel length	405 mm
Cartridge	5.45×39mm (TKB-09) 7.62×39mm (TKB-010)
Action	Delayed blowback
Rate of fire	800-850 rpm
Muzzle velocity	890 m/s
Feed system	30 round box magazine
Sights	Iron