These larger diameter 'slugs' allow the glue gun to dispense a greater amount of glue per trigger stroke and hold more glue per load. We offer a totally comprehensive range of Hot Melt Guns and Glue Sticks suitable for almost any application. A solid adhesive slug that is non-toxic, clean and easy to handle is heated in a 43mm Glue Gun and applied molten to one surface to create an instantly secure bond.