spike bayonet
bayonet with a pointed spike rather than a more conventional blade that is attached to a firearm for use as a bayonet and limited usefulness as a handheld weapon
en-GB/ˈspaɪk ˈbeɪəˌnɛt/
en-US/ˈspaɪk ˈbeɪənɪt/
bayonet with a pointed spike rather than a more conventional blade that is attached to a firearm for use as a bayonet and limited usefulness as a handheld weapon