That looks like a VOG-17M or a VOG-26, but without its primary fuse. It is supposed to be launched from a grenade launcher and I think there was a type that could be launched off of an AK.

Regardless, it’s a nasty little thing.

Cleaning this shit up after the war is going to be nasty.

Kids in Vietnam are still taught about mines and explosives in school because there is still stuff left behind and they are in severe danger playing in the woods.