Abstract: The present hand gun receives pressurized hot melt adhesive and the like via a heated flexible hose. The operator's handle and the supply conduit for adhesive project in a common plane from opposite end portions of the gun barrel. Although generally parallel, the handle and conduit typically are inclined toward each other and are joined at their ends remote from the barrel, forming a rigid generally polygonal frame with ample opening between the handle and conduit to receive the fingers of a hand gripping the handle. The gun thus completely isolates the operator's hand from the path of supply of the molten material, while still permitting the hose to extend generally downward from the gun in most positions of use. The disclosed configuration further provides a well protected location for the control trigger. An improved safety latch for the trigger is disclosed. The swivel connection between gun and hose provides fully enclosed access for electrical wires.