Low poly model.

Video: Demon A4 (youtube.com)

Rigged with Epic Skeleton.

The skeleton from UE4, if you use UE5, consider this point.

Additional bones that are added to skeleton:

Head (Jaw1, Jaw2)

Textures:

4K PBR Textures(tga)

5 materials

15 textures

Polycount:

Verts: 6432

Faces: 5456

Tris: 10460