This article presents ethnographic insights into the everyday lives of people who circulate conspiratorial narratives through an ethnographic study of ultranationalist men in contemporary Turkey. Drawing on the findings of this research, the author suggests that conspiratorial discourses should be examined not solely in terms of their (anti‐)truth qualities but as social practices through which masculine subjectivities and socialities are engendered. The author then explores how the circulation of conspiratorial narratives forges agency and political subjectivity for the men involved, while also inducing sociopolitical effects such as vigilantism and paramilitary violence. This article contends that through the circulation of conspiratorial narratives and everyday engagements with vigilantism and extralegal violence, the men reconfigure sovereignty and the way that the state operates in contemporary Turkey. The findings of this research suggest that the focus should be moved away from the epistemological shortcomings of conspiratorial narratives or strategies to debunk them – such as fact‐checking – which presume that exposure of ‘the truth’ would lead to the dissolution of ‘untruthful’ conspiracies. Rather, the author suggests that researchers attend to the particular forms conspiracies take in concrete situations, how they mould political subjectivities and social groups and reconfigure the ways that the state operates alongside the law in other similar settings.