  We analyze the supersymmetric contributions to direct-CP-violating
observables in $K \to \pi\pi\gamma$ decays induced by gluino-mediated
magnetic-penguin operators. We find that $\epsp_{+-\gamma}$ and the
differential width asymmetry of $K^\pm \to \pi^\pm \pi^0 \gamma$ decays could
be substantially enhanced with respect to their Standard Model values,
especially in the scenario where $\epsp/\eps$ is dominated by supersymmetric
contributions. These observables could therefore provide a useful tool to
search for New Physics effects in $|\Delta S|=1$ transitions, complementary to
$\epsp/\eps$ and rare decays.
