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O-4N
The O-4N (О-4Н) is a Bulgarian (VMZ) point-detonating (PD) semi-boresafe fuze that provides instantaneous- and delayed-impact (inertia) functionality. The O-4N fuze is used with various 60-82 mm mortar high-explosive fragmentation (HE-frag) mortar bombs, along with similar nature projectiles for the RPG-7 (РПГ-7) launcher (recoilless gun. The O-4N is a slightly modified version of the earlier O-4M (О-4М), differing in that in it incorporate...
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