I understand there is a wooded practice version as well.
It was introduced in November 1942.
Below that is the earlier Gewehrpanzergranate 30,
produced in conjuntion with the 30mm HE Gewehrsprenggranate in February 1942. Intended as a H.E.A.T. alternative to the
H.E. round, it may have been effective against lightly armored vehicles
but was obsolete almost from the onset.
There are two base fuzes shown here. The left one is in the safe (before firing) condition.
As with the AZ5071 PD fuze, the safety device is a coiled flat spring nested in a releasing socket. This safety provides a secure block between the needle and detonator. The releasing socket is held in place by a stout helical spring.
When fired, inertia pushes the releasing socket down against the helical spring and locks in a compressed condition. The coiled safety is freed and expands to the inside wall of the shaft clearing a path for the entire striker assembly to move forward on impact initiating the detonator. There is no creep spring, so unexploded ordnance was in a delicate condition. The same fuze is found in both grenades.
Firing Sequence Detail & Cut-Away
An external view of the base plugs and a cross sectional view of the Mod.30