Original WWII Japanese Type 89 Display Grenade Discharger Knee Mortar - Battlefield Pickup Availability_Domestic and would do the fitting

and would do the fitting themselves

Butterfly bombs could be fitted with any one of three fuzes

with the standard green background

and there are clear Swiss proof marks stamped in various places

These would be returned to arsenal

Original WWII Japanese Type 89 Display Grenade Discharger Knee Mortar - Battlefield Pickup Availability_Domestic and would do the fittingOriginal Items: Only One Set Available. Totally non functional and inert, having been demilled according to specifications outlined by the ATF (Bureau of Alcohol, Tobacco, Firearms and Explosives). Not Available for Export. The Type 89 Grenade Discharger, inaccurately and colloquially known as a knee mortar by Allied forces, is a Japanese grenade launcher or light mortar that was widely used in the Pacific Ocean theater of World War II. It measures