what is this very small grenade?
It is a Dutch V40 made by NWM.
More info on the V40 (NWM datasheet)
Also exist a blue painted training version.
thank you to all of you
nice collection of V40
this grenade exist with frag coil ? like the M26
thank in advance for your response
No, the interior of the spherical grenade body was pre-notched. (Jane’s Infantry Weapons 1975)
See gyrojets last photo.