The present invention relates to an autoinjector device (10) for use in combination with a syringe (30), said syringe 0 comprising a movable plunger; a needle; and a tubular needle shield (34). The claimed autoinjector device (10) comprises: an elongated housing having a proximal (11) and a distal end (12); a drive mechanism; a syringe holder (40) in order to support the fragile Csyringe and to prevent damage to the syringe. The invention furthermore relates to a method for assembly of the autoinjector device according to the invention.