It is our claim that the adoption of software engineering reuse techniques can leverage MAS development, mostly when we consider similar applications belonging to the same domain. MAS-Product Line (MAS-PL) raises as an interesting approach that uses Software Product Line Engineering (SPLE) techniques and AOSE to manage the common-alities (similarities) and variabilities (differences) of such MAS applications. Although MAS present specific characteristics that could be considered when describing the system variability, existing work on MAS-PL is devoted to deal with MAS variability considering only domain-specific issues. Moreover, the adoption of variability models such as feature models should be considered for describing both Generic and Specific MAS variability. We propose a MAS-PL approach to address the aforemen-tioned issues by representing Generic MAS variability according to MAS concepts such as agents, environment, interaction and organization, and Specific MAS variability according to a specific application domain. We evaluate the approach by deriving a family of agents that perform jobs in the Multi-Agent Contest environment.