Stochastic CAS, QCAS, RAS, and equivalently uncontracted multi-reference configuration interation (MRCI) wave functions, are special cases of the GAS strategy, thus, they are promptly available by an appropriate choice of the GAS subspaces and corresponding constraints. Our efficient implementation of the Stochastic-GAS method, using hybrid parallelisation, the GAS-PCHB excitation generator, and the adaptive shift has allowed for example uncontracted stochastic-MRCISD calculations with up to 96 electrons and 159 orbitals and a large (32,34) active space reference wave function.