Abstract: The present disclosure relates to a medicament container for accommodating a liquid medicament. The medicament container includes an elongated container barrel defining a longitudinal direction and having a proximal end and a distal end. The proximal end is opposite the distal end. The container barrel includes a proximal container cross section at the proximal end. The elongated container barrel includes a distal container cross section at the distal end and the proximal container cross section is substantially identical to the distal container cross section. The medicament container further includes a seal arranged at the distal end and extending across the distal container cross section, and a retainer engaged with the seal and engaged with the elongated container barrel to fix the seal to the distal end.