Intended for destroying enemy emplacements (shelters, stone, brick or concrete fortifications), light armoured and unarmoured vehicles and enemy troops.
| Caliber, mm | 73 |
| Round weight, kg | 4,570 |
| Grenade weight, kg | 3,680 |
| Propellant charge weight, kg | 0,890 |
| Muzzle velocity, m/s | 290 |
| Maximum range, m | 4500 |
| Number of hitting fragments, pcs. | 800 |
| Weight of the fragments, kg | 0,762 |
| Safe operational temperature range, °C | -40…50 |
| Rate of fire, rds/min | 4…6 |
| Dimensions, mm | 1082x520x298 |
| 6 rounds in a case | |
| Gross weight, kg | 51 |
2A28 gun mounted on BMP-1
