stylistic:style_transfer, structural:summarization
Fragmentation

Fragmentation grenades are common in armies. They are weapons that are designed to disperse fragments on detonation, aimed to damage targets within the lethal and injury radii. The body is generally made of a hard synthetic material or steel, which will provide some fragmentation as shards and splinters, though in modern grenades a pre-formed fragmentation matrix is often used. The pre-formed fragmentation may be spherical, cuboid, wire or notched wire. Most explosive grenades are designed to detonate either after a time delay or on impact.

Modern fragmentation grenades, such as the United States M67 grenade, have a wounding radius of 15 m (49 ft) – half that of older style grenades, which can still be encountered – and can be thrown about 40 m (130 ft). Fragments may travel more than 200 m (660 ft).