New Mexico is the only state that only allows for the carrying of one concealed handgun with a valid permit. You can conceal one and open carry 500 of them if you wish but only one concealed. It states that on the New Mexico page at
Handgunlaw.us The problem is there is no site that answers even 1% of all questions concerning the carrying of firearms that people have. Sometimes you have to dig and read a lot and even then there is not an answer for the question!!