The Mark 2 4.2 inch mortar bomb consists of a streamlined body tapering towards the head and base. A tail unit is secured to the base adaptor which comprises a cartridge container, and is fitted with fins. The head receives an exploder container. A nose adaptor was provided, screw-threaded for a fuze or No. 6 plug. The body is made of cast iron/steel, and may have one or more bands of colour.
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