SERVER HELP! Custom Guns in server files

Yo! I have been trying to put a custom gun and a gun pack into my city and I can’t seems to figure it out! I have tried everything i know and it’s not enough. So, I came here to see if my 5M fam can help me! I think my files are missing something, maybe?

Any tutorial vids out there or anything?

**Presh! **
-JB