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M821 (HE Mortar Bomb)
The M821 is a US, ductile cast iron-bodied, 81 mm high explosive fragmentation (HE-frag) mortar round, which is known as a cartridge in US terminology. The M821 is a UK produced mortar bomb, such as the L31 family, which has been modified by the fitting of a US M734 fuze and use of the US-revised augmenting (incremental) charge system. The M734 multi-option mortar fuze (MOMF) fitted combines proximity (air-burst), impact and delayed impact...
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