  Gauging a discrete 0-form symmetry of a QFT is a procedure that changes the
global form of the gauge group but not its perturbative dynamics. In this work,
we study the Seiberg-Witten solution of theories resulting from the gauging of
charge conjugation in 4d $\mathcal{N} = 2$ theories with $SU(N)$ gauge group
and fundamental hypermultiplets. The basic idea of our procedure is to identify
the $\mathbb{Z}_2$ action at the level of the SW curve and perform the
quotient, and it should also be applicable to non-lagrangian theories. We study
dynamical aspects of these theories such as their moduli space singularities
and the corresponding physics; in particular, we explore the complex structure
singularity arising from the quotient procedure. We also discuss some
implications of our work in regard to three problems: the geometric
classification of 4d SCFTs, the study of non-invertible symmetries from the SW
geometry, and the String Theory engineering of theories with disconnected gauge
groups.
