Homemade Air Gun Full Metal

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This weekend is a project of mine. There is a barrel valve piston sealed with a 1 / 2 "pilot valve parts are brass, stainless steel, the pressure chamber is emptied fire extinguishers rated to 270 bar ~ 18.5 psi, the piston is made of glue hot, no background music ... I'm sorry. has been removed for copyright infringement and again apologize for the poor is the poor microphone of the camera if anyone is interested ... I 'I shot with a Panasonic Lumix DMC FZ 28



http://www.youtube.com/watch?v=2bvXiswEDSo&hl=en