HARPOON FIREARM FOR UNDERWATER SHOOTING Russian patent published in 2002 - IPC

FIELD: sporting weapon that is effective for sporting shooting and training in water medium. SUBSTANCE: weapon has a barrel, receiver, hammer, handle, trigger mechanism, harpoon and a line. A kinematic linkage of the trigger with the sear is provided through a volume of water automatically filled at an immersion into water and emptied on coming out of water. The inside diameter of the bore is increased on the side of the breech. EFFECT: enhanced safety of the weapon since a shot in the air is impossible. 4 dwg