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M821A4 (HE Mortar Bomb)
The M821A4 is a US, 81 mm high explosive fragmentation (HE-frag) mortar round, which is known as a cartridge in US terminology. The M821A4 is based on the M821A3, but differs in that it incorporates features to enhanced its fragmentation (lethally) characteristics. The M821A4 is fitted with the M734A1 multi-option mortar fuze (MOMF), which combines proximity (air-burst), impact and delayed impact functionality. The M821A4 is fitted with...
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