"Missile tests are about to be complete. This missile will allow to use the [S-400] system to its full potential," the source told RIA Novosti, adding the air defense system will be able to engage targets at its maximal range.
The missile is now undergoing the final tests, which are expected to conclude in the near future, according to the Russian Defense Ministry.
The S-400 Triumf (NATO reporting name SA-21 Growler) was added to the Russian Army’s arsenal in 2007. The next-generation system can carry three different types of missiles capable of destroying aerial targets at short-to-extremely long range. It can engage up to 36 targets at once, firing 72 missiles toward them.