The Type 06 rifle grenade is a rifle grenade used by the JGSDF. It can be launched from the Howa Type 89 or Howa Type 64 rifles without other attachments.
A JGSDF soldier in the 36IR with the Type 89 with the Type 06 attached.
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.
Type 06 rifle grenade
…The Type 06 rifle grenade (06式小銃てき弾, Maru-roku-shiki Shōjū Tekidan) is a rifle grenade used by the JGSDF. It can be launched from the Howa Type 89 or Howa Type 64 rifles without other attachments. The JGSDF did not adopt the US-made M203…
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.