Adhesive plungers distribute adhesives in a dispensing gun system. When the trigger is pulled, the plunger pushes the adhesives to the mix tip and out of the gun. Adhesive plungers are available in different ratios for a wide variety of applications. A 1:1 ratio plunger distributes both adhesives at the exact same rate. Plungers with 2:1, 4:1, and 10:1 ratios are effective when a designated mixture is required for specific adhesive combinations. In an alternate-ratio plunger, one end is larger than the other. When the trigger is pulled, adhesives within the cartridges are distributed at the specified ratio to form the desired mixture.