According to the present invention, a backstrap module is utilized in conjunction with a firearm having a security apparatus and a firing apparatus. The security apparatus authorizes operation of the firearm and generation of an electronic firing signal which is communicated to a firing probe of the firing apparatus. The backstrap module includes a molded shell which removably affixes the backstrap module to a frame of the firearm and houses the security apparatus. The backstrap module further includes a device for communicating the firing signal to the firing probe and provides for the energizing of the security apparatus and the firing apparatus.