m1916 German percussion igniter
For safety reasons, the German army was reluctant to use percussion igniters. On this model, the striker spring is relaxed until the moment of ignition, thus reducing the chance of accident.
The striker is integral in a tube terminating in a mushroom shaped head held in place by a ball. The tube lodged in the igniter body has a spiral guide surface which, in order to extract, requires a twist pull movement, thus preventing accidents. When the tube is twisred and pulled, it raises the striker which compresses the spring until the point where the ball, rising from the top of the igniter, falls out. The striker, suddenly freed, explodes the primer.
Using a percussion igniter presented an advantage, along with some risk, in that it ensured ignition; causing a rapid increase in the use of this grenade.
Overall, this igniter provided no real advantage over the pull model due to complexity of construction. Invented at the end of 1916 it was abandoned by the beginning of 1917. The models manufactured in 1917 are recognizable by the absence of any brass parts.
The m1916 German percussion igniter is by leaps and bounds the rarest of all WW1 German grenade igniters and are extremely difficult to find.......Dano