Why is Moral holding a golden gun in Episode 7?


In the last scene of episode 7,

> Moral was pointing a golden gun at Art.

But in the beginning of episode 8,

> Moral is seen to be holding a normal black gun.

Why is he holding a different gun? Does this have any implications to the
story?  
![enter image description here](https://i.stack.imgur.com/VTlmg.png)

