Discussing gun crime in New York means discussing guns bought in other states

Again, though, most of the firearms used in those incidents are almost certainly not purchased in New York. We know this because the Bureau of Alcohol, Tobacco, Firearms and Explosives collects data on the points of origin for guns recovered at crime scenes. In 2020, less than a fifth of firearms recovered in New York (that is, the state) were purchased in New York. That was the second-lowest rate of any state in the country.

Source: WP