Pack contains 85mm obr 1939 gun (Late) with crew The 85mm obr 1939 anti-aircraft gun (KS-12) was developed by M. N. Loginov at Artillery Plant No. 8 at Kaliningrad (later relocated to Sverdlovsk) as a replacement for the 76mm anti-aircraft gun. All models are supplied un-assembled & unpainted, sealed in their retail box.