Second step involves improving the means of modernizing it to the P-300PM2 that will allow to increment the possibility of defeat ballistic targets, to change the outdated jobs and computing funds to modern standards ("Elbrus", "baguette", RAMEK), enter in the system offline funds detection and targeting, and upgraded communications equipment and modern means of topographic location.
The indicated work on a number of estimates show that the efficiency of the modernized S-300PM to the level of PM2, the reflection of the combined impact of aerodynamic and ballistic targets, increasing by an average of 15-20%.
In the long term, by 2020, nearly 100% of anti-aircraft missile regiments Command and missile defense (air and missile defense) troops planned to re-SAI on an anti-aircraft missile system With-400 AA missile and gun system (ZRPK) "Armour-S", also SAM complex (SAM) "The Knight".
Moreover, 6 ZRPK "Armour-S", held at the municipal tests Ashuluk and Kapustin Yar already entered service anti-aircraft missile regiment 5 Brigade Air Defense Command air defense and missile defense.
In September 2011, SAM With-400 and ZRPK "Armour-C" for the first time took part in a large-scale exercise "Combat Commonwealth-2011" and "Union Shield-2011", which showed the highest results in the destruction of aerial targets as small, medium and large heights.