Click the link above that says -> Nevada ->
This will take you to the list of threads for the NV forum. One of them is a sticky for the pamphlet that you can print out that will give you all the low down for carrying in NV. For the most part, you'll like it here.
You are allowed to buy long guns (rifles and shotguns) while visiting. If you buy a handgun, it will have to be shipped to a dealer in your state. NV charges $25 for the background check, having its Highway Patrol acting as a point-of-contact between the dealer and the FBI. Your state may not have this fee, so I'm making sure you are aware of it, if you buy from a dealer here.