Gun safes come in all shapes and sizes. They range from small single handgun safes to large multi-rifle cabniet safes. Some safes can even be hidden under beds or in walls. Different safes also lock in different ways. The main types of locking mechanisms are: * key lock * combination lock * keypad lock * biometric (fingerprint) lock Gun safes can usually be purchased where guns are legally sold. They can also be purchased from the Internet and other department stores.