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A fragmentation grenade (commonly known as frag or frag grenade) is a high explosive anti-personnel grenade that is designed to disperse small projectiles or fragments on detonation. The body may be made of hard plastic or steel. The outer casing and/or a fragmentation matrix consisting of notched wire and preformed fragments (spherical or otherwise) provide the projectiles. When the word grenade is used without specification, and context does not suggest otherwise, it is generally assumed to refer to a fragmentation grenade.
Fragmentation grenades can be divided into two main types, defensive and offensive, where the former are designed to be used from a position of cover, (e.g. in a slit trench or behind a suitable wall,) and have an effective radius greater than the distance it can be thrown, while the latter are for assaulting troops and have a smaller effective fragmentation radius to limit risk of fragments hitting the thrower.
Fragments may travel more than 200 m.
- Federation of American Scientists. M67 FRAGMENTATION HAND GRENADE