Text copied from: Bulletin#59 german hand- & riflegrenades, Mar.7 1944 :

Data: Overall length: 9.3inches, Maximum diameter: 2.4inches, Color: Olive green, Markings: Blue band round projection at the base of body, Legth of body: 3.1inches, Filler: Cyclonite/Wax

Description: The grenade consists of a streamlined bell-shaped body, with a slightly convex closing disc of aluminium, a graze fuze which screws into a projection on the base of the body, and a vaned tail unit which screws on the base of the fuze and is closed by a rubber plug.

The body is made of thin steel and is steamlined with a cylindrical projection welded at the base. The projection is screw-threaded internally for the insertion of the fuze. A hole in the base of the body is fitted with an aluminium cup to accommodate the protruding magazine of the fuze. The head of the body is closed by a concave disc of aluminium which is secured by the overturned rim of the body.

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The bursting charge consists of a cast cyclonite-wax with a hemispherical cavity in the head. The cavity is fitted with an aluminium liner of corresponding shape with a flange which fits inside the body at the head.

The fuze is cylindrical with an external screw-thread at each end for assembly as the connecting piece between the tail unit and the body. A central recess contains the striker and creep spring and is closed at its enlarged front end by an aluminium magazine which is screwed in and contains a detonator and an intermediary explosive. A transverse channel near the base contains a spring-loaded screwed shearing pin which engages in a recess in the stem of the striker. Another channel containing a cutting pin with spring, is bored from the base of the body and communicates with the shearing pin at a point where the shearing pin is reduced in diameter. A circular plate, secured in a recess in the base of the body by two screws, retains the cutting pin in its channel. The base end of the cutting pin passes through a hole in the circular plate and is thus exposed to the pressure of the propellent gases.

The tail unit screws on to the base of the fuze and consists of a drawn-steel tube with six vanes formed in pairs. The cartridge is placed inside the tube for transport and the tube is closed at the base by a rubber plug. The cartridge is of the 7.92mm small arm type with an undyed hollow wooden bullet.

Operation: The grenade is fired from the spigot type discharger. On firing the hollow wooden bullet is shattered by the propellent gases, which project the grenade. The propellent gases overcome the spring of the cutting pin and drive the pin forward, causing it to cut the shearing pin away from its screwed end. The shearing pin is then ejected by the spring held in compression under its head, and thus leaves the striker held off the detonator only by the creep spring. On graze the momentum of the striker overcomes the creep spring and the detonator is pierced.

Length : 240mm
Diameter : 60mm
Weight :
Empty weight : 335gram
Filling :