What is another type of non-lethal round fired from the M500?

The rubber round is another type of non-lethal round that can be fired from the M500 shotgun. Rubber rounds are designed to incapacitate a target without causing permanent injury, making them suitable for riot control or situations where lethal force is not justified. They typically have a lower lethality profile compared to standard ammunition, as they can be used at close range while minimizing the risk of serious harm.

In contrast, other options such as paintball rounds, chemical rounds, and dummy rounds are not primarily associated with the M500. Paintball rounds are used in recreational shooting and do not have the same applications in law enforcement. Chemical rounds are typically designed for dispersing incapacitating agents, which is a different function. Dummy rounds, while useful for training, do not serve the purpose of crowd control or non-lethal engagement. Therefore, the rubber round stands out as the most appropriate answer in the context of non-lethal applications for the M500 shotgun.