Fragmentation grenade

A fragmentation grenade, or frag grenade for short, was a type of explosive device used during the 20th and early-21st century.

In 2374, the crew of the USS Voyager were subjected to lethal holodeck scenarios, one of which was set during World War II. During an attempt to retake the ship from the Hirogen, Seven of Nine modified a holographic fragmentation grenade to emit a photonic burst capable of disrupting any holographic signature in a twenty-meter range.