DESCRIPTION: This fuze body 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 re-cess contains the striker and creep spring and is closed at its enlarged front end by an aluminium magazin which is screwed in and contains a detonator and intermediary explo-sive. 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 cut-ting pin with spring, is bored from the base of the body and communicates with the shearing pin channel 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 propellant gases. (See fig. 563.)

Details of the magazine filling and the composition in the detonator are not avaible.

ACTION: The rubber plug is removed from the tail unit and with the cartridge loaded into the rifle in the normal way the tube of the tail unit is placed over the spigot device at the muzzle.

On firing the hollow wooden bullet is shattered by the propellant gases which project the grenade and, overcomming the spring of the cutting pin, 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 crep spring. On graze the momentum of the striker overcomes the crep spring and the detonator is pierced.

Figure 563 – A.Z. 2492