One of the most affordable lights that both first responders and civilians carry is the Maglite. If you carry a flashlight, like the Maglite (C-cell), the cap alone will not break glass. Attempting to break a window with the stock equipment on these flashlights can cause damage to your expensive light or injure you or someone else with flying glass. Attaching Bust A Cap to your flashlight will ensure that it will break glass with just one tap without damaging your equipment.