T-84 Oplot-M (BM Oplot) is the newest and most sophisticated version of the T-84, Ukrainian main battle tank. Major upgrades are more advanced armor, new electronic countermeasure systems, and others. One visible feature is the new PNK-6 panoramic tank sight. The BM Oplot is armed with a 125 mm smoothbore KBA-3 cannon, a KT-7.62 (PKT) coaxial machine gun and a KT-12.7 anti-aircraft machine gun. The main gun is fed by a loading system equipped with conveyor, automatic loader and control system. The ammunition includes high explosive fragmentation (HE-FRAG), armour-piercing fin-stabilised discarding-sabot (APFSDS), high explosive anti tank (HEAT) and gun mount (GM) rounds. The protection system includes multilayer passive armour, Nozh-2 explosive reactive armour, Zaslon active protection system, Varta optronic countermeasures system and other tank protection means.