Dunk:

We mounted ours on C clamps(taped on with electrical tape) that way you can find a place to mout on the shooting house, I even put mine on the roof of one last year. when it gets almost dark we turned them on and left them on until hunt was over.I still had good lightat 11pm without changing out the battery. I don't recomend mounting on a rifle, if the light moves at all the hogs run! If you turn the light on when hogs are there the hogs run. Just our observations. All I use is the green on hogs.