These devices rely on the owner to actively use the insert. Like trigger locks, locking barrel or chamber inserts limit the unauthorized use of the handgun by children and adolescents. They allow easy access to the handgun and can be purchased with either keyed or combination loc ks. Many are designed to be permanently mounted in a variety of locations. Because they are portable, lockboxes are not as secure as an immobile safe.
Lockboxes require the user to actively secure the handgun in the lockbox.
When a handgun is properly secured in a lockbox, it is virtually impossible to unintentionally discharge the weapon. A lockbox effectively prevents the unauthorized use of the gun by children of any age, as long as the child does not ha ve access to the key or combination. The lockbox is the device most often recommended by police to prevent unauthorized access to a handgun.