This article is missing information about needs history. Please expand the article to include this information. Further details may exist on the talk page.(March 2019)
It replaced the Mk III helmet and became the British Army's last metal helmet when it was replaced by the composite material Mk 6 helmet in 1985.
Design
The Mark IV helmet was a modified design of the Mk III helmet with the chinstrap rivet moved down the bottom of the helmet shell as well as the introduction of a lift the dot style
fastener for the inner liner.[2]
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