Gun in socket stays in Third Person player start position

[rbtmtn]

Noob. I usually can do things my self, but cannot find an answer to this.
I am following this tutorial:

My player character is a simple cube with a socket attached called GunSocket, The gun is a just a box also, resting at the top of the cube off to the side.:

It has no bones. I added a child in the player character, attached it to the socket, and added the reference to the socket in the construction script:

When I play it, the gun does not follow the main character when moving. It stays in the start position.