Do-All Outdoors Life Jacket 3 (LJ3) Gun Security System The Do-All Outdoors Life Jacket 3 (LJ3) Gun Security System is a rugged, lockable protective case designed specifically for shotguns. Constructed from hardened polycarbonate with a soft padded foam interior, it fully encloses the action to prevent access to critical operating components. A heavy-duty locking mechanism and integrated chamber lock plug directly into the shotgun for enhanced safety, while an embedded steel cable around the perimeter helps resist cutting. These features work together to provide robust protection against unauthorized access. Compatible with most pump and semi-auto shotguns, the LJ3 offers reliable security for safe transport and storage. Its universal design ensures it fits a wide range of popular shotgun models.