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. The ASP baton cap has been designed to fit all models that ASP currently distributes. The ASP baton is a light weight expandable baton used by police, government agencies, military, and private security around the world. Bust a Cap has no moving parts and can be deployed with either your strong or weak hand.