I am looking for a mount for my HD 870 its 12g has 18.5in barrel with full stock(I like the full stock, I'm used to it and I don't need to make it tactical). What I do need is to make it functional. That being said; I need to mount a light on there. I am partal to fenix lights, what I need help with is finding the right mount. Ive googled it and they are everywere. It has to be mounted so I can opperate the light with my hand on the forgrip. Does anyone know of a good mount that isn't going to break my wallet and is functional. If you have any pics that would be great. Thanks guys