Introducing a new, one-of-a-kind device for first Police & First Responders. Bust A Cap is being utilized throughout the United States by Cops, Firemen, Government agencies, Military personnel and private security. Bust a Cap provides a tactical advantage and an effective and safe way to break glass. Be one of the first to take advantage of this new device and help first responders stay safe with Bust a Cap. There is no way you can break a window with these flashlights without causing damage to your expensive light or injuring someone from flying glass. Attaching Bust A Cap to your flashlight will insure that it will break glass with just one tap and not damage your equipment. Warning: Please remove the o-rings from the old cap and put on your new Bust a cap to insure that your light remains water tight.