This body is based on the 3.0 body with optimized joints, as well as improved weapons and accessories:

• A large joint has been added to the waist, allowing for more flexible torso rotation, resulting in a more natural overall appearance.

• The knee joints feature a hidden double-joint design, enabling not only knee bending but also 360-degree rotation.

• The elbow joints also utilize a hidden double-joint mechanism, allowing the upper arms to rotate 360 degrees.

• Additional interchangeable hand poses have been included.

• Weapons and accessories feature enhanced detailing.

• Guns now come with special effects.

• The helmet is removable.

• ARC's armor is detachable.

• JET's backpack includes special effects.

In addition to the above optimizations, the body retains the same size as version 3.0 , All joints are tighter and more secure, reducing looseness.