Third Person Template How to switch between Unarmed and rifle/Pistol Animations

I started with the Third Person Template and added the Starter Animation Pack and am trying to have my character be able to have no weapon out and move, rotate camera freely just like the TPT starts with. and add the rifle movement animations and aimoffsets to it but every example I find is one that always has a weapon.

I need to be able to start unarmed and pick up weapons and sheath them. Something like GTA or Fallout. If someone could just point me in the right direction or has an example of this I would greatly appreciate it. a small sample project to learn off of would be excellent but any help is awesome.