|Overall length||5 inches.|
|Maximum diameter||1½ inches.|
The case is made of thin sheet aluminum. Within the case, below the lid is a cylindrical holder retained in position by four indentations in the case which correspond to four indentations in the holder. This holder has a screwed projection to take the friction igniter. The latter has a short piece of cord, 10 cm. in length attached to a wire loop. Below the holder is a dish shaped aluminum piece which contains a small compressed charge of black powder. On the upper side of this charge is a thin disc of white powder. The main filling consists of ten cylindrical pellets of a yellow compound and one pallet of a white substance wrapped in cellophane. The charge is held between the two dish shaped pieces. The grenade generates a lachrymator vapor when ignited and the vapor escapes through the holes in the holder. The containers are unpainted aluminum, and the lid is secured by a piece of adhesive tape colored blue. They are safe to handle when the lids are in place. To disarm the grenade, the igniter may be unscrewed from the holder, taking care not to twist the wire in so doing.
The lid is removed and the friction igniter is pulled. The vapor will be emitted through the holes in the holder.