So I have emag lowers and I recently sent the trigger (and a couple other pieces) to be annodized. Upon reassembly I cant get it to fire. It appears my trigger is not activating the sensor. Is there supposed to be a magnet at the end of the screw in the trigger or is the back supposed to be magnetic (its the screw with the kind of flat head and it has an oring around it)? Its the only thing I can think of that would be causing it not to work at the moment.