A BB gun is a type of air gun designed to shoot small spherical projectiles called BBs, which are typically made of steel and coated in copper or zinc. These guns use compressed air or gas to propel the BBs, making them popular for target shooting and recreational use. They are often used in shooting sports and can be found in various styles, including pistols and rifles. BB guns are generally considered less powerful than traditional firearms, making them safer for beginners and younger users when proper safety measures are followed. However, they can still cause injury if misused, so wearing protective eyewear and following safety guidelines is essential.