Blast overpressure is a rapid high wave of pressure created by an explosion that can cause serious or fatal injuries.

The M111 relies primarily on blast overpressure rather than fragmented inner pieces to incapacitate, making it better suited ...

A grenade is missing from the scene of an explosion at a Los Angeles County Sheriff’s Department training facility that killed three members of its arson and explosives unit, authorities said Friday.

The Army has cleared the M111 hand grenade for service. It will replace the Mk3A2 series, marking the first new grenade for the Army since 1968.

One of two grenades involved in a deadly explosion that claimed the lives of three Los Angeles County Sheriff’s Department detectives in East Los Angeles last week is unaccounted for, officials said ...