The Volokh Conspiracy
Mostly law professors | Sometimes contrarian | Often libertarian | Always independent
See here, which lists "[w]orkers supporting the operation of firearm or ammunition product manufacturers, retailers, importers, distributors, and shooting ranges," but prefaces all the categories (not just the gun-related ones) with:
This list is advisory in nature. It is not, nor should it be considered, a federal directive or standard. Additionally, this advisory list is not intended to be the exclusive list of critical infrastructure sectors, workers, and functions that should continue during the COVID-19 response across all jurisdictions. Individual jurisdictions should add or subtract essential workforce categories based on their own requirements and discretion.
[T]he Governor's executive order tracks every other executive order that has a stay at home provision and none of those—none of those—contain an exemption for firearm stores, nor does the federal guidance from Homeland Security contain that type of exemption when it comes to essential facilities and nonessential facilities. So, we're consistent with every other executive order that calls for stay at home. We're consistent with federal guidelines and we'll defend the Governor's executive order in court.