Weapons Assets

Hi, before I start the discussion I have to say Iam a beginner in developing. (I don’t speak English so my grammar is not good sometimes)

But here is my problem:
I recently downloaded custom weapons (not replace) and put them to my server resource, but I don’t know how to give them to player.
So can someone help me how to do that, or do I need to do something more than just put them on server and start it? (Iam using ESX)
Here is the download link for the weapons: weapons