Abstract: A caulking gun or the like for the dispensing of construction materials such as caulk, glue, sealant, etc. is provided with a guide at its front end to enable the user more easily and readily to follow an object such as a construction member, groove and other line to which the material is applied. The guide is especially useful in guns having elongated rear-end extensions that enable operation of the gun by a standing rather than a kneeling workman. The guide in one form is configured to facilitate its following a construction member such as a joist, stud, etc. The guide is also adjustable with reference to the dispensing nozzle of the gun.