This study of male Canadian (n = 475) and U.S. (n = 425) handgun owners addresses 2 questions: (a) Are there differences in gun-related motivation and behaviour patterns; and (b) does the Model of Defensive Gun Ownership of Stroebe, Leander, and Kruglanski (2017) fit data of Canadian handgun gun owners? U.S. and Canadian gun cultures are supposed to be different: Unlike most U.S. gun owners, Canadian gun owners are not assumed to purchase guns for self-defense because they trust their government to protect them against crime. Although Canadian and U.S. handgun owners differed in their gun-related motivation and behaviour patterns, these differences were less substantial than expected: Mean levels of trust in law enforcement of Canadian and ...