check with SupremeCo, they should be able to help you out.
The so called "Porcupine" was a special run of the SureFire A2 flashlight with a Tactical Impact device directly build into the bezel of the light. It was - to my information - only available on the asian market. Some have found its way back here, but not to many. /ubbthreads/images/graemlins/wink.gif