Gta 5 How to get all the weapons?

Hi! How can I get all the weapons with GTA 5 (Xbox One) if I enter cheat? I have something but there's such a bunch more teargas lenkrakette etc… There's always not in stock!

So when and how can I have all the weapons on the weapon wheel?

I think times "legal" play.

Cheats are legal in story mode.

In the story simply normal play, then you can buy at ammu-nation iwan as well as online