이후 국산 파워팩 개발 기간을 연장, 2차 양산 분부터 국산 파워팩을 적용하기로 했지만 파워팩 중 국산 변속기가 국방규격을 충족하지 못해 전력화가 지연됐다.
Since then, it has decided to extend the period of development of domestic power packs and apply domestic power packs starting from the second mass-production products, but weaponization has been delayed because of the fact that domestic transmissions among power packs fail to meet national defense standards.