Hi there!
This 3D model was made inside Blender. It has clean geometry with 4k textures (only the roughness texture is 2k). As you can see it also has a basic rig. All of the bones have names for easier navigation (picture 28). Every object also have unique name so you won't get lost (picture 30). If you're curios about the all of the scenes statistics you can find in picture 29.
This model also include a walking animation (you can watch it in the youtube video):
I hope I could help with this model, if you have any questions feel free to ask, have a nice day!