Gun rights via militia definition expansion?

“The Whites of Their Eyes” Colonial militia at Bunker Hill 1775. Ken Riley. Located at the JFK Presidential Library.
An Arizona lawmaker wants to add specific weapon allowances and a public marksmanship program to the broad definition of the state militia. The four-pack of legislation pre-filed for the 2018 session aims to revise the composition and protected equipment of the unorganized militia, which under the state Constitution currently consists of “all capable citizens” aged 18 to 45.
Stringer’s proposal would remove the upper age limit on militia composition as well as spell out a list of “particularly suited firearms” protected for personal possession. These protections would include any revolver or semi-auto firearm, magazine or accessory of the type used by law enforcement in the state or the military as well allow for “sufficient quantities” of privately held ammunition for both training and emergency use.
Kind of an interesting concept.
If you start specifying now how long before the specifics are downgraded to ammo limited to water?