Ukraine is the only country in Europe in which the circulation of weapons is not regulated by a separate law. In order to implement the specified task, the legislator must also take into account the foreign experience of regulating the legalization of the circulation of firearms (carrying, possession, use) among the civilian population. This direction of scientific analysis and research is especially relevant in the conditions of world globalization processes, universalization of the national legislation of individual states and the course to wards integration. The purpose of this study is to determine the impact of the legislative regulation of weapons circulation in the country on the effectiveness of ensuring security in the state. The circulation of weapons is clearly regulated by international and foreign legislation. there is currently no single, universal approach to regulating the circulation of weapons among different categories of the population and citizens among states. Legislation in this area in the vast majority of countries is quite liberal. The presence of clearly developed and modern legislation has positive consequences for states. Ensuring the regulation of arms circulation in the state directly affects the legal regime of the use of arms circulating among the population as a whole and its separate categories, control over the legality of such circulation, as well as the effectiveness of combating illegal arms circulation and violent crime committed withthe use of weapons. The study of foreign and international regulatory legal acts in the field of regulation of arms circulation made it possible to identify gaps and inaccuracies (errors) in the current regulatory legal acts of Ukraine in this area of regulation. There is an obvious need to harmonize the national legislation of Ukraine with international legal acts in the field of arms regulation, in particular with Directive No. 91/477/EU, in particular, in accordance with this legal act, as well as taking into account the experience of foreign countries, we believe that the law on the regulation of the circulation of weapons in Ukraine should include a number of key provisions on the regulation of the circulation of weapons in Ukraine. Key words: arms circulation, firearms, short-barreled firearms, carrying weapons,legal regulation, legalization, criminal responsibility, state security, state policy,foreign legislation, eff ectiveness of regulation, self-defense, international legal acts,armed crimes, state of crime.