system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Were blasters regulated among ordinary Republic citizens?

Let's assume I'm some average citizen on Coruscant or any other populous system in the heyday of the Republic. Barring that, I'm some criminal *sleemo* with no respect for the law. I see a weapons store and I, pockets full of credits attained legally or otherwise, decide I'm going to buy a blaster that suits my fancy. Do I need to have a background check, fill out necessary paperwork, and go through a waiting period before I can purchase my weapon? Or will the dealer just hand me my gun as soon as I put my credits on the counter?
gpt
Different worlds governed themselves separately. Coruscant allowed for personal ownership of handheld blasters but not larger rifle variants. Onderon allowed pretty much anti tank rifles for personal ownership. Oord mantell allowed nearly any weapons system below orbital platforms for ownership. Each star port restricted people from carrying illegal weapons into the main areas but it was easy enough to bribe guards or spoof sensors. 

Most people simply didn't need blasters in the core worlds and further out it's less regulated. The vast majority of people used vibro blades, traditional knives, or handheld blasters that were almost universally legal. For legal purposes it was easier to restrict production and sale of arms than target individual ownership. The gunstore on coruscant isn't going to have illegal arms for sale and any sentient of legal age can purchase them same day. Criminals are barred from buying weapons but proxy dealers and false chaincodes gets around this fairly easily. 

And again every world is unique. Some may punish illegal arms more harshly than others and some may simply recognize legal ownership from another world. Only a small handful of weapons are outright universally banned for sale but even fewer are banned for ownership. It's too daunting a task to ban anyone from owning a weapon but barring it's sale and production is easier to manage. Restrictions enforced at starports respect local laws while recognizing foreign laws. And each citizen was granted some form of right to bear arms with each world deciding what constituted legal arms for personal ownership.