From Guns.com:

The measure, HB 2166, was introduced last week by state Rep. Steve Kaiser, R-Phoenix, and has four co-sponsors. As detailed by the Arizona Daily Star, the state has a 5.6-percent tax on retail sales that, combined with local taxes, can hit a combined rate as high as 11.2 percent in some communities. This, Kaiser told local media, can be a deterrent to purchasing a firearm, “And cost should not be a barrier to defend your family, your property,’’ said Kaiser.