Methods and devices for forming a composite carrier frame assembly used in an injection molding process are described. Methods and devices described herein are well suited for insert molding multiple small pieces into a single injection molded part. The composite carrier frame assembly can include a number of insert attached thereto that are positioned in a pre-determined arrangement such during an injection molding process the inserts are molded in a molded part in the pre-determined arrangement. Each insert can include an anchor portion arranged to be molded in the single injection molded part and an exterior portion arranged to be positioned exterior to the single injection molded part.