Questions about we and Raven Beretta

I understand that the internal design of both companies is the same, so I have two questions.

As you can see in the picture, there are a lot of scratches on the slide and the front sight is also missing.

1. Are the slides compatible with other versions of our or Raven's Beretta? For example, M9A4 and M92 are can change the slides?

2. If Question 1 is possible, can the slides be exchanged between WE and RAVEN Berettas?