Abstract: Systems and methods for resolving inefficiencies when applying spray adhesive and activator from a two-component, handheld spray gun are provided. One embodiment of the two-component, handheld spray gun apparatus includes a first nozzle and a second nozzle coupled to a common bracket. The first nozzle and the second nozzle each include a spray valve and orifice for dispensing an amount of liquid adhesive or liquid activator from the respective nozzle using only line pressure. Further, a trigger coupled to the first and second nozzles is used to simultaneously dispense the adhesive and activator during spraying. In embodiments, the first and second nozzles dispense adhesive and activator at a particular angle such that an amount of dispersed adhesive intersects an amount of dispersed activator to provide a combined spray pattern on a surface.