A tranquilizer gun projectile is commonly referred to as a DART. It is a small, pointed object that is shot from a tranquilizer gun and is designed to deliver a sedative or tranquilizing drug to an animal or person. The DART is typically made of plastic or rubber and is filled with a liquid or powder form of the drug. The DART is propelled by compressed air or gas and is designed to penetrate the skin and deliver the drug into the bloodstream.