Hello. Using Blender, I modeled a man with a gun. Sometimes the gun has to be holstered, and sometimes has to be held in his right hand, so I made a bone for gun, made it a child of root bone, and added "Child of" bone constraints for both his right thigh and right hand bones. It was working fine until I tried to animate the character with Mecanim. Firstly, "Humanoid" importing did not work, because it made the gun move out of place. So I gave up that and tried Generic setting, but again encountered problems with blending tree and animation layer. Whenever my character takes "a pose between animation clips", my gun bone move away from my character's right hand and blended as independent bone. I hope the attached images make sense. Am I doing something Mecanim are not designed to do? If so, what is the alternative to create a character with a bone that switches its parent (or making character who can hold and holster his weapon)? I really hope not that I have to use Legacy... Sorry if my question is too vague or fundamental. Constraints and the gun bone. Looking up and down clips... ... and somewhere between them. The gun moves out of the right hand!