Over-locking

Over-locking is manufactured by the Imbrium Machine Complex. The legs have seen recent exposure with outworld security personnel.

Halo 4
There is a WEB skin related to CIO armor.

Halo 5: Guardians
In Halo 5: Guardians the following sets utilise Over-locking parts:
 * ENFORCER-class Mjolnir: Legs

List of appearances

 * Halo 4
 * Halo 5: Guardians