DESCRIPTION. The round consists of a prerifled aluminum grenade with a plastic head and an aluminum cartridge case. The black plastic head contains a message form and a pencil and screws on to the body. (See fig. 314.) The prerifled body contains a smoke generator, a colored silk streamer and an ejection charge. The aluminum case is marked "Nachr Z". The round is designed for use in the 27-mm. rifled signal pistol.

OPERATION. On firing, the flash from the propellant ignites the delay pellet in the grena-de base plate. This, in turn, ignites the ejecting charge which expels the message con-tainer, smoke generator and silk streamer from the grenade body in flight.

Figure 314 – 27-mm Message Pistol Grenade