That harpoon gun used in the movie Jaws is indeed real.
The Greener MK II Light Harpoon Gun is just incredible.
Cue the scary music. Youtuber olsoneo87 has a real harpoon gun and is going to fire it.
The Greener MK II Light Harpoon Gun is a real deal and is just like the one in the movie Jaws. This harpoon gun is powered by a .38 caliber blank cartridge and can really launch a spear with a lot of force. Now that would be the king weapon for spear fishing (check local and state laws first of course).