sincronização photon wearpon and fire with damage

hello, good afternoon!, I’m with the project and the difficulty is as follows: I can go over the weapon and pick it up as the child object, walk with it and drop it, but the other player can’t see it.
he only sees the other player animating but the weapon will no longer be displayed in his hand, as synchronized for the two to be able to see.
and also saber saber do I do for a raycast that can damage another player, take it and pass it?
I’m grateful if you can help me!

Remote Procedure Call
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What this does is it executes a function on all client’s devices sent from one user
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Great tutorial: Concepts and RPC Functions of Multiplayer Games - YouTube