Originally Posted by badge315
That's an old-school Surefire 618.
I got one of them on my old Marine Magnum too.....
Also, if you haven't done so, do yourself a favor and buy one of these:
They make the light much better/brighter and it's cheap to boot.
O, that a man might know the end of this day's business ere it come!
But it sufficeth that the day will end and then the end is known.
And if we do meet again, why, we shall smile;
And if not, why then, this parting was well made.