An in-mold shutter for embedding in an injection mold is described herein. The in-mold shutter includes a shutter actuator that is configured to selectively engage a first mold shoe of the injection mold with a platen of a mold clamping assembly to hold the first mold shoe in an extended position, along a mold-stroke axis, during a step of molding a first molded article in the injection mold. Also described herein is a molded article transfer device for use with the injection mold. The molded article transfer device includes a shuttle that is slidably arranged, in use, within the injection mold. The shuttle defines a first aperture, at least in part, that alternately accommodates: a first mold stack arranged therein; and (ii) a first molded article received therein with opening of the first mold stack.