  We demonstrate that, in an appropriate limit, the off-shell M5-brane
worldvolume action effectively captures the scalar potential of Seiberg-Witten
theory perturbed by a small superpotential and, consequently, any
nonsupersymmetric vacua that it describes. This happens in a similar manner to
the emergence from M5's of the scalar potential describing certain type IIB
flux configurations [arXiv:0705.0983]. We then construct exact nonholomorphic
M5 configurations in the special case of SU(2) Seiberg-Witten theory deformed
by a degree six superpotential which correspond to the recently discovered
metastable vacua of Ooguri, Ookouchi, Park [arXiv:0704.3613], and Pastras
[arXiv:0705.0505]. These solutions take the approximate form of a holomorphic
Seiberg-Witten geometry with harmonic embedding along a transverse direction
and allow us to obtain geometric intuition for local stability of the gauge
theory vacua. As usual, dynamical processes in the gauge theory, such as the
decay of nonsupersymmetric vacua, take on a different character in the M5
description which, due to issues of boundary conditions, typically involves
runaway behavior in MQCD.
