Photodissociation of the ionized argon pentamer, Ar + 5 , is studied using an extended diatomicsin-molecules interaction model with the inclusion of the spin-orbit coupling and various dynamical approaches. A thorough comparison with the experimental data available in the literature is presented, including photofragment abundances and their kinetic and internal energy distributions.New predictions are reported for ultra-violet photoexcitation energies, a range that has not been studied before either experimentally or theoretically.