If you carry the Poly Stinger or the Stinger LED, you know the size of these flashlights vary depending on the model.  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 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.