  In an earlier work, the authors developed a rigged configuration model for
the crystal $B(\infty)$ (which also descends to a model for irreducible highest
weight crystals via a cutting procedure). However, the result obtained was only
valid in finite types, affine types, and simply-laced indefinite types. In this
paper, we show that the rigged configuration model proposed does indeed hold
for all symmetrizable types. As an application, we give an easy combinatorial
condition that gives a Littlewood-Richardson rule using rigged configurations
which is valid in all symmetrizable Kac-Moody types.
