Along with gun safety and proper training a gun lock is a useful tool to ensure that your children don't just pick up and fire a gun without knowing what it is. We at Frank Security Locks have many types of locks available for many types and sizes of guns. From revolvers to heavy duty rifles. There are many different types of locks that perform all types of duties. Ensure that when you're choosing a lock it is important to speak with our Cambridge locksmiths so that it fits your gun securely.