*sigh*
maybe some1 should explain the beauty of the command reference - its a very simple html file that tells you all these simple questions...
anyways - i know it isnt simple when u dont know how to do it, so of course im gonna help.
type this into the ammobox init field:
this addweaponcargo ["weaponname", #]
change # to the number you want. For magazines just change it to addmagazinecargo
:thumbsup: