As was reported earlier, modernization cost of T-72B up to the T-72B3 version amounted to 52 mln roubles in 2013 prices, including 30 mln for complete overhaul. Major difference of the 2016 version from standard T-72B3 is the Relict-class active armor modules (instead of Contact-5 class used before) and new, more powerful diesel engines V-92S2F.
The serial modernization program of Soviet-made T-72B tanks combined with complete overhaul of these armor vehicles was adopted in Russia in 2010. First variants of that upgrade (in particular, T-72BA) had a trial nature, but since 2012 the T-72B3 version was recognized as a standard.
Basically, the upgrade of the T-72B3 version is related to a new fire control system, including the Belarusian-made Sosna-U gunnerís multichannel stabilized sight, and a new 125-mm gun 2A46M-5. Improvements in the autoloader allow using of the new Svinets-type extended projectiles.