The Type 99 hand grenade, also known as the Kiska grenade by the American Army, was an improved version of the Type 97 fragmentation hand grenade used during World War II.
Japanese Type 99 hand grenade
In military munitions, a fuze is the part of the device that initiates its function. In some applications, such as torpedoes, a fuze may be identified by function as the exploder. The relative complex
Wooden grenade fuse from the 17th Century, broken open vertically, with preserved delay charge.
Mk 53 Proximity fuze for an artillery shell, c. 1945
A modern multichannel radio remote detonator, in 2015.
The contact fuze of a G7a torpedo, a hybrid design using both impact and swing-arm inertial triggering.