The SureFire FM2x BeamFilters are too large to attach onto the Tigerlight bezel - The Tigerlight must be about a millimetre or so less then 2.5" diameter.
Thanks Al, I should have just sent you an email /ubbthreads/images/graemlins/ohgeez.gif /ubbthreads/images/graemlins/grin.gif I might play with one to see if I can use a thicker rubber to make up the difference.