That's a stainless steel Peak Eiger with a couple of extras… The SS version is like $65, but you can get it in Al for about $50.
It's actually an inexpensive light that I bought online. I think that the brand is an Ultrafire Cree c3 stainless steel flashlight. I had the LED switched out to an XPL by Vinh Nguyen, a modder on CPF. Thanks for looking!