Blank firing guns are firearms designed to produce a loud noise and muzzle flash without firing a projectile. They use blank cartridges, which contain gunpowder but no bullet, making them safer for training and theatrical purposes. These guns can closely resemble real firearms, allowing for realistic simulations in various scenarios. While blank firing guns are often used in movies and military training, they can still pose risks if misused. The gas and debris expelled from the muzzle can cause injury, so safety precautions are essential. Proper handling and storage are crucial to prevent accidents, especially around children or untrained individuals.