The standard Russian medium mortar of the war was the 82-PM-41 or 82mm battalion mortar Model 1941. This served alongside the otherwise similar 82mm Model 1937. Both were very effective and accurate weapons with a range of about 3,000 yards.
82mm mortars were regarded as artillery rather than infantry weapons by the Russians and were usually massed together in batteries for battalion-level support.
Models supplied unassembled and unpainted