In the United States of America you can own and operate firearms without a licence, but not a whiskey still
In Aotearoa New Zealand you can own and operate a whiskey still without a licence, but not firearms.
Odd isn’t it?
In practice, it makes it virtually impossible to distill your own alcoholic beverages at home in the USA while you can own, operate and trade as many lethal weapons as you desire. Even if you purchase a still for the purpose of distilling water the seller is required to keep a record of the the purchaser’s name and address, and to supply those details to the Bureau of Alcohol, Tobacco and Firearms upon request. So you may receive a visit from them just to check the still is being used for its “intended purpose”.
On the other hand, in NZ you can own, operate and trade as many stills and their components as you desire, and make as much whiskey or other spirits as you desire, provided you do not trade by way of private sale any of the liquor produced. You can also own, operate and trade as many guns as you desire with the proviso that said guns are of the class allowed for on your firearms owner licence, are stored securely, and you sell them only to a person with an appropriate firearms owner licence.
Note that in NZ, personal protection and self-defence are not lawful reasons to be in possession of a gun, even if you hold an appropriate firearms owner licence for the weapon. Currently there is no firearms registration, but that will be phased in over the next few years, thanks to the Christchurch mosque shootings in March 2019.