The housing is made of aluminum and is cylindrical in shape, with a diameter of 300 mm and a length of 390 mm. The upper base of the housing contains a cup with a detonator located in the center, and two cups with six GE30M hermetic elements (three in each cup), sealed with screw-on caps. Two strips with pre-assembled striking elements are glued to the side surface of the housing. In the center of the lower base of the casing is a filling port, closed by a cap that is screwed to the casing.