A bō-hiya was a Japanese arrow-launching cannon and development of the fire arrow.
An Edo period wood block print showing samurai gunners firing bo-hiya with hiya-zutsu (fire arrow guns)
Antique Japanese (samurai) bo hiya or bohiya and hiya taihou (fire arrow cannon), Matsumoto Castle, in Nagano prefecture, Japan
Antique Japanese (samurai) bohiya or bo hiya, showing the fuse, Matsumoto Castle, in Nagano prefecture, Japan
A rifle grenade is a grenade that uses a rifle-based launcher to permit a longer effective range than would be possible if the grenade were thrown by hand.
Bō-hiya
…the Bō-hiya were "falling like rain". Bo-hiya were standard equipment on Japanese military vessels, where they were used to set fire to enemy ships. Rifle grenade Ryūsei (signal rocket…
Mills bomb N°23 Mk II, with rod for launch by rifle
Mills N°36 rifle grenade, with its gas check disk for use with cup-launcher
Diagram of a Babbitt rifle grenade, as used in the Springfield 1903 rifle
French V-B rifle grenade, a bullet trap type. Top shows views and cutaway of the grenade, bottom shows the grenade and grenade launcher, which is affixed to the rifle. Cross-section shows that the grenade is a pass-through design, allowing the use of live ammunition. Arming tab, activated by the bullet's passage, can also be seen.