Abstract: A post processing fitment applicator for applying a fitment to a formed, filled and sealed carton is disclosed herein. The post processing fitment applicator may be utilized in conjunction with a linear form, fill and seal packaging machine such as a TETRA REX® packaging machine. The post processing fitment applicator includes a supply of fitments, a plurality of fitment carriers, a conveyor system and a hot melt dispenser. The plurality of fitment carriers are disposed on a continuous track that partially parallels the movement of a series of formed, filled and sealed cartons on the conveyor system. The plurality of fitment carriers is capable of applying a fitment to a formed, filled and sealed carton as it is moving along the conveyor system. Each of the plurality of fitment carriers may include a fitment holder and a fitment displacement mechanism.