Goose25 said:
"...not looking to spend a lot here, found a light attachment from MARSTAR, TACSTAR, and ATI..."
Personally, although I'm sure they fill a market niche, I would steer clear of TacStar and ATI products.
I have an aluminum tri-rail that I've mounted on the mag extension of my 870:
The rails are positioned at 3, 6 and 9 o'clock to the mag. With a light that has its on/off switch mounted on the rear of its housing, mounting it on the rail that's located on the left side of the shotgun (the same side as the shell carrier in the picture) puts it in a perfect position to be used with the thumb of the left hand without having to remove the left hand from the forend.
I don't recall where exactly I purchased mine ...but it was online from a U.S. supplier and probably cost about $25-$30. Just Google 'shotgun tri-rail' and you should come up with a source (the same tri-rail is being sold by several online retailers these days). This particular tri-rail is very well built and can be mounted on a shotgun barrel and/or the magazine extension in a couple of different ways (none of which require a gunsmith). I believe it also comes in two different lengths ...the one that I purchased (in the picture) is the smaller of the two.
To use this set-up with a 1" barrelled LED flashlight, all you would need is a scope ring (or perhaps two) to mount the flashlight on the rail. I wouldn't try using a flashlight with a regular incandescent bulb, since the filament would likely not survive the shotgun's recoil. Mounting a dedicated weapon light (SureFire, TLR etc.) with a standard Weaver/Picatinny style base would be a simple matter of using the rail 'as is'.
It's a good piece of kit.
