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We continue our exploration of the nearly Peccei-Quinn symmetric limit sharedby common singlet extensions of the Minimal Supersymmetric Standard Model. Thislimit has been established as a viable framework for studying sub-electroweakscale dark matter phenomenology and has interesting and direct connections tonew exotic Higgs decay physics. We present analytic calculations to motivatethe important phenomenological features mentioned above. We also discussbenchmark points in this model framework that accommodate the observed GalacticCenter gamma ray excess. We emphasize connections between phenomenology of darkmatter direct detection and indirect detection, and new exotic decay channelsfor the 125 GeV Higgs boson. We conclude by identifying two benchmark modes ofexotic Higgs decays for $h \to \tau^+ \tau^- \mbox{${\not\! E}_{\rm T}$}$ and$h \to b \bar{b} \mbox{${\not\! E}_{\rm T}$}$ final states and estimate theirsensitivity prospects at the LHC.

Supersymmetric Sub-Electroweak Scale Dark Matter, the Galactic Center Gamma-ray Excess, and Exotic Decays of the 125 GeV Higgs Boson