thermite_grenade
A type of hand grenade designed for anti-materiel destructive purpose. It contains incendiary aluminum powder and metal oxides that can produce devastating heat (approximately 2500°C) when ignited.
It is well-known in Apex Legends, identifiable by the red coloring and distinct shape.
While in real life many thermite grenades have same external shape as smoke grenades, tubular casing with a pin but features different markings.