The primary contractor for the project was Mitsubishi Heavy Industries, with the main subcontractor being Komatsu Limited.

On each side of the hull are six road wheels with an idler at the rear, and three track return rollers.

In the center of the hull is the two-man turret which mounts the Oerlikon Contraves KD-series 35 millimeter caliber dual-feed cannon with a cyclic rate of fire of approximately 200 rounds per minute, which is produced under license in Japan.

The troop compartment has seven firing ports: three on the left, one of the right rear exit door, three on the right side.

Japan This hull was used by Mitsubishi as the basis for the Type 99 155 mm self-propelled howitzer introduced in 1999.

The engine was kept, but the chassis was lengthened by one road wheel to accommodate extra weight of the heavy artillery piece.