Devices and related methods are provided for dispensing compositions having a tip (72) including an inner tapered funnel portion (74); a hollow barrel (84) including an outer tapered surface portion (86), an inner surface, an open front end, and an open back end opposite the front end; and a piston (16), where the outer tapered surface portion of the barrel aligns and releasably engages with the inner tapered funnel portion of the tip, and where the piston is in sliding engagement with the barrel. Applications include, but are not limited to, dispensing dental materials such as composites, adhesives, etchants, glass ionomers, cements, and sealants.