Probably you know, 2B9 Vasilek it is an automatic mortar, instead of AT-gun.
But HEAT shells for it also are available, as this mortar can shoot on a direct trajectory.
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Eng web page
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Rus web page
Mortars Calibre of 82 mm ordinarily are considered as arms of infantry, the 82-mm 2B9 "Cornflower" should be carried an automatic mortar to a category of artillery arms. First of all it is caused by fighting rate of fire 2B9, having very high value - up to 100 shots in a minute (rate of shooting makes 120 shots in a minute), and also its opportunity to fire a straight line and, thus to carry out the problem of artillery support and struggle with armored targets.
Ordinarily 2B9 it is established on the easy wheel gun carriage reminding a gun carriage of an easy field gun, equipped by beds and the pallet. In the middle the trunk is fixed in the rotating device similar to a drum, carrying out a role of the machine tool. The receiver of an ammunition of store type provides submission of 82-mm of mines from holders on four mines, inserted on the right. 2B9 can conduct hinged fire on an abrupt trajectory as a mortar, thus mines are charged manually from a barrel, or on a direct trajectory as the easy anti-tank gun (there is a sight for a direct aiming) with use to charge automatic fire through a state part from shop. In completion to all at to charge from a barrel there are three various types of throwing charges, but at to charge from a state part a charge unified. Force of feedback is absorbed by the hydroamortisation system established around of a trunk.
The 82-mm a mortar "Cornflower" also is established on self-propelled the chassis; the most widespread is installation in a body of 2-ton lorry GAZ-66 4�4. One more variant is installation of "Cornflower" on a cargo platform of in appropriate way modified caterpillar conveyor MT-LB. Hungary lets out a similar variant of the self-propelled installation also collected on the chassis of advanced conveyor MT-LB.
2B9 "Cornflower" is capable to fire in standard 82-mm an ammunition to a mortar; the weight of a mine makes about 3,1 kg. For shooting a straight line to aim on armored targets the special mine with a cumulative warhead is developed. The maximal range at shooting on a hinged trajectory makes 4200 meters.
Photo Rus web page