This is an Israeli experiment an is "alternate ammunition" for standard weapons. This allows a standard load out to include both lethal and less lethal capacities with a magazin switch rather than multiple weapons. No law enforcement is using it as it is not fuly developed.

Non lethal, by the by, is a feel good term. Anything "non lethal" still has a level of lethality. Sometimes it's luck of the draw, some times it's how it's used that makes the difference.