Device for preventing accidental discharging of a bullet from a firearm

A device for preventing the accidental discharge of a bullet from a firearm, comprising:

• attachment means adapted to engage the muzzle end of a firearm barrel;
• a substantially tubular body coaxially attachable with one of its ends to said barrel via said attachment means, the bore of said tubular body being provided close to said one of its ends with abutment means;
• a stopper fixedly attachable to the other end of said body and having a central bore of a diameter exceeding the calibre of said firearm;
• an impact disk slidably disposed in the bore of said tubular body, and
• energy-absorbing and storing means interposed in said bore between said impact disk and said stopper, and acting on said impact disk to maintain contact with said abutment means inside said body,
• wherein upon the discharge of a bullet, the latter pierces said impact disk while transferring some of its kinetic energy to said energy-absorbing and storing means, accomplishing which, said bullet disintegrates into small particles escaping through said bore in said stopper.