Citation(s) from the GunPolicy.org literature library
Karp, Aaron. 2009 ‘Country Summaries - Colombia.’ Surplus Arms in South America: A Survey; Working Paper 7, p. 39. Geneva: Small Arms Survey, the Graduate Institute of International and Development Studies, Geneva. 1 August
Country Summaries - Colombia
Civilian ownership: Registered civilian gun ownership reached 706,210 firearms as of mid-2005. This indicates a ratio of 1.53 legal arms per 100 civilians, a low ownership rate, which suggests that most civilian guns are unregistered.
Despite Colombia's strict regulatory regime, there are many unregistered guns in the country. Military sources estimate that there are as many as 800,000 unregistered weapons. National police sources, on the other hand, contend that the number is closer to 2.4 million.