The picture of the gun in this article has a mounted flashlight - perhaps that's what they mean when they say "tactical" operations?

http://www.wired.com/dangerroom/2009...op-killer-gun/

Switch your light on momentarily to locate your target, move, turn the light on again and open fire if necessary. That's the "tactics" in "tactical."

That's why a tactical light will have a forward-clickie (allowing momentary-on operation), often a grip ring to facilitate a "cigar hold," and a button that protrudes from the rear of the light for easy operation (as well as remote pressure-switch options, e.g. for a shotgun). Weapon-mounting hardware, filters and diffusers may also be available for the specific light in question. If they're built to be weapon-mounted, they should also be able to handle recoil forces.

I imagine DealExtreme classifies any light as "tactical" if it has an assault bezel, of course ;)

I just came back from a Forward Operating Base in Afghanistan and one of the USMC Gunny's I work with showed me his SureFire light somebody absconded for him and I was sufficiently impressed that I intended to buy one when I got back.

Then I got back, saw how much they were and what the run time was and decided to pass. Great light. Highly overpriced.

Best tactical thing I've ever used on a bike was an Essential Gear VIP light. We use a variant of them in my job.

John