There has to be a balancing of rights, and it seems to me that a private property owner has the right to determine who or what comes on to his property. Forget that it's a company. It's still private property. Think of it as your own home and tell me what say you have in determining what goes on there. You can invite people in to your home but you can dictate on what terms they can come in. You can say they must remove their muddy shoes, or they have to leave their dog outside, or they can't come in armed if you don't want them to. You have the say. It's your castle. How can I be wrong in this?
You want it all, that's the problem.
Ok...for sake of discussion, let's change the object and Amendment in question from guns to, oh, let's say, Bibles or Rap/Hip-Hop CD's or the Radio Station you listen to while on company property. Let's say that the Company decides to ban Bibles in personal vehicles while parked in the company lot, or says you can't listen to a particular radio station while operating your vehicle on company property.
Do you support still support their private property rights in regards to regulating what you can have in your vehicle? What is the difference between the gun and the Bible in this scenario?