In terms of the model kits, the CP-20 Jager Unit Jager was the second CAS to be developed for the Liger Zero. It focuses on speed and maneuverability. The two large Ion Boosters mounted on its back serve to make it a very fast Zoid. It is, however, lightly armed and armored, as it only has a pair of vulcans mounted onto its face and the double-barreled Shock Cannon on its stomach by way of ranged weapons. It retains the Strike Laser Claw of the basic Zero, but is far more noteworthy for its speed than its combat ability.
"Jäger" is German for "hunter". It is also a play on the last name of Charles Yeager, a U.S. test pilot and the first man to travel at the speed of sound in 1947. This is likely due to it's exaggerated ability, shown in the anime, to be able to travel at just over supersonic speeds similar to the Lightning Saix. Both have been shown to create small, but powerful sonic booms when passing close by other Zoids at each of their respective top speeds.
In Korea, the Jäger CAS was released by Academy, and sold boxed along with the base Liger Zero. The Korean version of this Zoid was produced in limited numbers and is somewhat expensive and hard to come by.
A chromed version was released by TOMY in limited numbers.
In February 2012, Kotobukiya released a 1/72 scale kit of the Liger Zero Jager as the 30th entry in the Highend Master Model line for 7,000 Japanese Yen. In May 2019, Kotobukiya will reissue the HMM Liger Zero Jager as the Liger Zero Jager Marking Plus Ver. for 7,600 Japanese Yen.