http://www.surefire.com/product/dsf/dsf-870-shotgun-forend.html
Interesting.
Not 100% on the dual modes and switching but can’t condemn it until I play with one. Generally am a one out put guy when it comes to weapon lights.
I would honestly be interested in one. I have the old style Surefire “Laser Products” fore-grip light on my testbed 870, and like it better than the current 618 model.
The contours on this one do resemble the older light I prefer. It’s easier to shoot, for me at least.
I just added Malkoff 200-lumen LED to the old light, and it works well for my purposes.
If I was a patrol deputy or cop in an area with lots of fields or warehouses, and could not carry a rifle, this would be a very welcome addition.
Unfortunately, it does not appear to be any lighter than the old models. 
-john
This is disappointing.
jvg
I agree
Nice piece but that price and light power is disappointing.
600 lumens is disapointing?
Ohh sh$& I read the wrong thing Srry. I thought I saw 200… Nope 600 is very nice. No complaints here sorry.
Can anyone weigh in here w/ some ACTUAL user feedback w/ this ?
600, with a head that size? You’ll be scorching retinas out past the effective range of buckshot - but I want to see if that conversion can work on my 870 - one of the old school Xenon lamp 6P based ones.
I share your sentiment. I had one of the older Surefire forends on my Benelli M2 when I still had it. Quality piece of equipment, well made and worked great, but I couldn’t get past how heavy the damn thing was. If I ever get another shotgun, I’m sure a little more research and creativity will yield a much lighter alternative.
I have one of the older versions which I replaced with the SF LED head. It’s more than bright enough and I didn’t spend an assload on it.
I also replaced the light engine on mine, but with a triple XPG P60 drop-in. It’s plenty bright and it is very functional, but I’d really rather something lighter.
-john
all surefire fore ends are neat as hell… im having plenty of luck with my magpul fore end with inforce WML though… considerably less cash and pretty solid setup