1. Revolver in holster/bagpack or any other inventory part.
2. Draw the revolver (in hands).
3. Swap the complete holster/bagpack/pant with a new holster/bagpack/pant lying on the ground.
4. Now you have your revolver in hands and a revolver lying in another storage item on the ground.
5. tested with buddy: he can pick up the revolver from the Bagpack and use it.