 According to its tactical characteristics, the AB-1(AB-7.62) has almost no difference from the AKM, but it allows the shooter to performing a much more accurate automatic firing at a greater distance than the last.ARGB-85 is a 30mm automatic grenade launcher under standard VOG-17 grenades.The KPB-12.7 is based on ARGB-85 and chambered with 12.7×108mm cartridge.