The economic crisis has brought with it an upsurge in extreme right activities, heightening the level of political tension in Europe. In response, anti-fascist movements are mobilizing. Among these we find a radical flank, often consisting of anarchists or autonomists, which combine a materialist analysis of fascism – viewing it as the outermost expression of structural problems deeply rooted at the heart of society – with the use of militant, direct action. By comparing radical anti-fascist groups in Sweden, Denmark, Poland, Germany and Russia this paper aims to provide a deeper understanding of this radical milieu and it’s role in the protests related to the economic crisis. Combining the framing perspective and the political opportunity-approach, the paper analyze whether differences in the activists’ collective action frames and repertories of action can be explained by cross-country differences in opportunity structures, including the development of the extreme right in each country.