I have a Model 618LF Surefire Forend Weaponlight for a Remington 870, I had this on my 870 police magnum for about 10 months, its basically new and in excellent condition, my shotgun has not seen rain, nor has this weaponlight and the only thing about it thats different from factory, is that it's painted stainless moly resin grey on the weaponlight body, but I can get it stripped to its original black color for no extra charge. 80 lumens output, with a constant on switch or momentary on. Here's a link to more information Surefire870forend
Asking $SOLD
On my shotgun
Close up shots
Constant On/off switch
Momentary Switch
Asking $SOLD
On my shotgun
Close up shots
Constant On/off switch
Momentary Switch