Complex sentence: Bastion Nevskij 276-85-Produced from 1957 to 1958 with improved D-10T2S gun and STP-2 "Tsyklon" 2-plane stabilization.
Split into simpler sentences: Bastion Nevskij 276-85-Produced from 1957 to 1958. It is armed with the D-10T2S tank gun and STP-2 "Tsyklon" 2-plane stabilization.