The Bust A Cap is a one-of-a-kind one-of-a-kind device that attaches to your existing flashlight and gives you a tactical advantage to break glass.  Bust A Cap is a rapid entry tool that was designed by a 13-year veteran of one of the largest Sheriffs Departments in the United States.  This device is being utilized by law enforcement, fire departments, government agencies, private security and civilians around the world, giving them a tactical and safe entry or exit out of an automobile, house, boat or plane.  Replace the existing cap on your flashlight with a new Bust A Cap device.  It is now ready when you are.  The cap is manufactured in the United States and made from special steel, installs in less than a minute, requires no training and will break glass with one tap.  Bust A Cap can save your life and the lives of others. The Large ASP cap and its greater diameter enhances your gripping power and has been designed to fit all models that ASP currently distributes. Bust a Cap has no moving parts and can be deployed with either your strong or weak hand.