The second Liger Zero CAS Unit, the CP-20 Jager Unit is designed for reconnaissance and high-speed strike operations. The Jager unit's main features are a pair of large boosters mounted on the Zoid's back, which provide the Zoid with incredible speed and acceleration while improving the Zoid's agility. All up, the Zero Jager has the best maneuverability of any ground-based Zoid, and has amongst the best acceleration.
The Zero Jager features advanced radar and sensory systems, allowing it to act as a reconnaissance unit. The CAS unit also reduces the Zoid's overall level of armor protection, but due to its high level of speed and agility this is not seen as a drawback.
The CP-20 kit consists of eight frames. Two of these frames are shared with the CP-21 kit. The kit is molded in dull blue, light blue and light gray, with some painted details. The model was released in 2000, with production continuing until about 2002. It has not been reissued. An earlier kit was LZ-01b, for the metal action Liger Zero. In Korea, the model was released in a package with a Liger Zero. A chromed version was released by Leoshop of Taiwan.
The Jaeger was the first CAS introduced in the New Century Zero anime, rather than the second. It is also the most commonly used CAS unit, despite Bit initially disliking it for aesthetic reasons.