There is a surge in gun violence in Sweden. Prior research has shown how these expressions of violence tend to be concentrated in space. For instance, there is an increased risk of a shooting occurring in close proximity to a prior shooting in the three largest cities in Sweden, especially at open drug scenes (ODS) in socially disadvantaged areas. Furthermore, prior research has found a clear spatial connection between shootings and the presence of ODS in Stockholm. However, less is known about the patterns of gun seizures. How does spatial patterns of gun seizures overlap with shootings and the presence of ODS and how can these be used to advance police practice? Such questions are important to add nuance to the overarching view on “gun violence”. The present study aims to explore the questions by converging three types of data drawn from the Stockholm region: one on gun seizures, one on gun incidents and another on the presence of ODS. With the use of spatial data analyses, we learn whether there are systematic differences in the patterns of gun seizures, gun incidents and the presence of ODS. The importance of nuanced data and how the results can be used by the police in their strategic work is discussed. The results may advance both police activities towards gang criminality and future research on gun violence.