Friends! I present to your attention the Flamethrower Attachment for the speargun! In Peacetime, you can fill with water and use it as a fire extinguisher! An external thread is made on the muzzle and a counter thread is made in the back cover of the console! The working stroke of the piston of the attachment may not coincide with the working stroke of the piston of the gun, therefore it is necessary to equalize them with the help of an additional piston without O-rings into the barrel of the gun in front of the main piston! Instead of a native harpoon, a rod of the same diameter calibrated along the length is used! The prefix acts as a hydraulic shock absorber, so it does no harm to the piston of the gun! Injection 30 kg per hand, hole in the attachment 5mm, diameter of the attachment piston 25 mm, liquid volume (when testing water) 120 ml! Pouring into the attachment using a syringe with a tube after the preliminary retraction of the piston to the end to the back cover with a bar of 5 mm in diameter! I recommend making the volume up to 0.5 liters. , then the watering time will increase! I tested it on the water, since there is no way in the city to test it with fire! Ignition as someone manages, but I suggest a torch on a glazing bead tied to a prefix with a flame at a distance of 20-30cm from the nozzle! You can't pierce armor with a harpoon, but not a single rashist in armor can resist a flamethrower! Glory to Ukraine!