Why grenades in movies look nothing like real life
In the United States, the portrayal of grenades in movies often differs from reality. Real grenades produce puffs of smoke and high-velocity metal, unlike the dramatic fireballs often depicted on screen. The difference between real and movie grenades can be attributed to their design and function.
Fragmentation grenades, such as the M67 used by the US military, contain strong explosives wrapped in a metal casing that breaks into small, high-speed bits upon detonation. Further details on the differences between movie and real-life grenades are available from military and defense sources, providing insight into the actual effects and uses of these devices.