  We study the quantum moduli space of N=2 Chern-Simons quivers with generic
ranks and CS levels, proving along the way exact formulas for the charges of
bare monopole operators. We then derive N=2 Chern-Simons quiver theories dual
to AdS_4 x Y^{p,q}(CP2) M-theory backgrounds, for the whole family of
Sasaki-Einstein seven-manifolds and for any value of the torsion G_4 flux. The
derivation of the gauge theories relies on the reduction to type IIA string
theory, in which M2-branes become D2-branes while the conical geometry maps to
RR flux and D6-branes wrapped on compact four-cycles. M5-branes on torsion
cycles map to flux and wrapped D4-branes. The moduli space of the quiver is
shown to contain the corresponding CY_4 cone and all its crepant resolutions.
