A user powered medicament injector including a reusable user powered automatic injection assembly including a user energizable medicament injection subassembly and a medicament module removably insertable into the reusable user powered automatic injection assembly and including a module housing adapted to receive a syringe having a barrel a needle engaged to said barrel and a removable needle cap covering the needle a needle shield configured to be moveable with respect to the module housing and a needle cap remover associated with the needle shield. The medicament module isconfigured for energizing the user energizable medicament injection subassembly by insertion of the medicament module into the reusable user powered automatic injection assembly.
