Those age 20 or above who want to possess a gun need to go through a lengthy screening process by the local public security committee, which is the governing body for the prefectural police force.
It doesn’t mention that there are restrictions on types of firearms, but it’s possible to own shotguns and rifles. Pellet guns are also possible, though I’m not sure ‘firearm’ is the right word there. I think crossbows were recently outlawed due to murders (previously I think they were in a weird grandfathered-in state, but I’m not 100% sure on that).
Japan has no access to firearms.
This is factually incorrect. I could go get my firearms and license right now if I wanted to (not that it’s easy, but it’s possible). See https://www.japantimes.co.jp/news/2023/05/31/national/crime-legal/gun-control-explainer/ for more info in English.
It doesn’t mention that there are restrictions on types of firearms, but it’s possible to own shotguns and rifles. Pellet guns are also possible, though I’m not sure ‘firearm’ is the right word there. I think crossbows were recently outlawed due to murders (previously I think they were in a weird grandfathered-in state, but I’m not 100% sure on that).