APPARATUS FOR UNDERWATER SHOOTING Russian patent published in 1996 - IPC

FIELD: equipment for sports shooting. SUBSTANCE: apparatus for underwater shooting is gun composed of barrel 4 placed concentric in receiver, muzzle attachment 5 and central bore where harpoon 25 with stabilizer 28 and piston 8 with seals 9,10,11, stop and trigger mechanism 12-21, check valve 30, line 23, device for laying and release of line are located. Receiver is manufactured in the form of cylinders 1,2 of different diameters and hollow handle. Sear catches rear part 34 of piston, it includes two-way split grip 12 put on axle 13 and ring spring 14. Slider 21 of trigger 20 while released frees line release. Axial duct of muzzle attachment includes conical part housing stabilizer 28 and cylindrical part - for harpoon rod. Space inside muzzle attachment located between cylindrical part and radial holes provides for hydraulic damping of piston 8 at the end of its travel when fired. EFFECT: increased power of gun, enhanced shooting precision and improved operational characteristics thanks to decrease of impact loads in gun mechanisms. 3 dwg