Gun-owners can now legally carry their weapons into Arizona bars. The only catch: they can't drink.

The Associated Press reported Sept. 29 that a new law allows concealed weapons in establishments that serve alcohol, if bar or restaurant owners agree. Those who don't may post signs saying that guns are not welcome.

Even if they are allowed in, gun-carrying patrons are not allowed to drink alcohol under the Arizona law.

The law was backed by the National Rifle Association, which says that similar laws now are in place in 41 states.