It was developed in the 1990s at the TsKIB SOO (Central Design and Research Bureau of Sporting and Hunting Arms) in Tula, Russia. The OTs-14 Groza ( Russian: ОЦ-14 'Гроза', lit.''Thunderstorm'') is a Russian selective fire bullpup assault rifle chambered for the 7.62×39 round and the 9×39mm subsonic round.
Iron sights, several optical and night vision sights OTs-14-4A-03: 3.96 kg (with 0.48 kg suppressor and 0.36 kg optical scope) Ħ0 mm (OTs-14-4A without a grenade launcher)ħ5 mm (OTs-14-4A with a grenade launcher mounted)ħ0 mm (OTs-14-1A without a grenade launcher)Ĩ0 mm (OTs-14-1A with a grenade launcher mounted)Ģ94 mm (OTs-14-4A without a grenade launcher)Ģ66 mm (OTs-14-4A with a grenade launcher mounted)ģ50 mm (OTs-14-1A without a grenade launcher)ģ20 mm (OTs-14-1A with a grenade launcher mounted)Ģ0-round detachable box magazine (Groza-4)ģ0-round detachable box magazine (Groza-1) OTs-14-4A-01: 2.93 kg (with vertical foregrip)
OTs-14-4A: 3.97 kg (with 1.23 kg grenade launcher derived from GP-25)
