How do you make an item spawn with no ammo?

I am trying to make a game. I need to learn how to make a weopon spawn with no ammo. All help needed.

Item spawner
And for no ammo, go to map options

Where is the map options?

on the left side of the screen, click settings, and then click on the top thing that says map options. Also, welcome to the community!

Thanks for the help!