A laser-weapon module (12) as may be used in a laser weapon (10), such a portable laser gun is provided. A first mount assembly (18) includes recesses (20) distributed in mount assembly (18). Laser beamlet assemblies (22), such as may include laser diodes, are disposed in recesses (20). A second mount assembly (24) is disposed forwardly from mount assembly (18) and includes recesses (26) distributed in mount assembly (24). Laser beamlet assemblies (28) are disposed in the recesses (26) in mount assembly (24), which includes a plurality of beamlet-transmissive portions (30) positioned to pass laser beamlets from laser beamlet assemblies (22). A focusing lens (32) is positioned forwardly of mount assemblies (18, 24) to focus respective laser beamlets (34) emitted from either of laser beamlet assemblies (22, 28) to form a beam (36) of laser energy to be directed to a target (38). The power level of beam 36 may be scalable.