Japanese grenade launcher

[A. F Medic]

http://i152.photobucket.com/albums/s165/FLYINGMEDIC/Japandgrenadelauncher.jpg

[Bruce McAskill]

AKA by our troops as a knee mortar. More then one broke his leg putting the blade on the bottom of the mortar against his calf and firing it. The blade was meant to go into the ground when fired.