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.
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.
The Type 99 hand grenade, also known as the Kiska grenade by the American Army, was an improved version of the Type 97 fragmentation hand grenade used during World War II.
Japanese Type 99 hand grenade