The present invention provides an injector device that can be used to inject a medicament. The injector device includes a body having a syringe cavity and incorporating a syringe. The syringe includes a barrel defining a reservoir for an injectable medicament and an injection needle is in communication with the reservoir such that the medicament content in the reservoir can be expelled from the reservoir via the needle. The syringe includes an internal piston which can be moved in an injecting direction along inside the barrel toward the needle to inject the medicament content through the needle. The syringe is slidably moveable within the syringe cavity in the body between a first configuration in which the needle has its point shielded, and a second configuration in which the needle is exposed for use for an injection to be administered, and back again.