Insertion system and an insertion kit is disclosed, the insertion system comprising a housing with a wall defining a cavity, an actuator element, a first part and a second part, the first part comprising a subcutaneous element and a first base element with at least one base plate engagement element, the second part comprising a needle hub and at least one insertion needle secured to the needle hub with the second part movably arranged from a first position to a second position relative to the housing along an insertion axis, wherein the housing comprises at least one first coupling element for releasably securing the insertion system to an inserter device, and wherein the actuator element comprises an outer part external to the housing such that manual actuation of the actuator element in relation to the housing is enabled.
