Recent advancements in empirical research differentiate the behavioral pathways and document the existence of either more authentic or narcissistic phenotypical manifestations of the ingroup identity. Although research on social identity is flourishing, there is little crosstalk between these two research branches. Thus, the goal of the current paper was to develop a new theoretical model, which would deal with the existing limitations. In a series of four studies (total N = 3284) we proposed and validated a new measure of authentic and narcissistic national identity – the Complete Identity Scale. The results supported the factorial, convergent, discriminant, construct, and ecological validity. The current study attempts to integrate research on in-group identity within one comprehensive framework.