The present invention relates to an autoinjector device (10) for use in combination with a syringe (30) said syringe 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 syringe and to prevent damage to the syringe. The invention furthermore relates to a method for assembly of the autoinjector device according to the invention.