Yes Pascal, With a tad more research I think there is little doubt that my projectile in transit is for the Granateschnellwerfer. Do you have any more particulars on this one (years of use etc....)? DanoHello Dano.
Difficult to answer without more precisions. Perharps the GranatenSchnellWerfer ? It's a 40mm fast grenade launcher, for 6 grenades.