The lock has a solid brass housing which houses the cylinder plug and pinstacks. The cylinder plug is also made of brass and is held in place with a retaining pin. It used two spring-loaded actuators made out of brass to engage the shackle. The shackle itself is made out of hardened steel. The pinstacks, retaining pin and actuators are inserted via a holes drilled from the right side of the lock. These openings are sealed with a brass strip and cap visible to the naked eye. The keyway goes all the way through the plug and has no end cap.
The 160 is vulnerable to the following attacks: