The MT-LBM upgraded transporter-tractor is equipped with a more powerful engine and manual transmission with a hydrostatic steering unit. It features greatly enhanced firepower. The 6MA machine gun- and 6MB gun-armed versions are available. The gun-armed MT-LBM is fitted with a night sight. The vehicle has a lower load capacity (1.0 tons), however its maximum trailer capacity remained unchanged (6.5 tons).