Probably the best way would be to use some kind of gasket clamp, like you use to attach a radiator hose to the radiator of your car or truck, to hold a flashlight to the barrel and stock. YOu will want to wrap tape around the ferrel and barrel, to protect them from being scratched and to give something for the clamp to grab when you snug down the screw. You have to decide if you are going to try to use the RR ferrules for the given purpose, or remove the ramrod, and carry that into the field. Otherwise it interferes with, or is interfered by the flashlight. Some simply duct tape the flash light to the side of the forestock on a half stock gun. That puts the flashlite back further from the muzzle, and usually allows the ramrod to stay in the ferrules( pipes).
YOu might want to consider getting a hard hat with a lamp on the front of it. Put a red lens cover on the light, and it will give you enough light to see the game, but the light will not spook them. By leaving it on your hat, you can use it to enter and come out of your hunting spot, without pointing the muzzle of your gun at something you don't intend to destroy. You can carry a back up lantern or flashlight to track the animals, or gut them in the field when you are successful.
I recommend getting a light like the MagLites, that can deliver a focused beam on a target at some distance. With the new bulbs, and batteries you can put out a lot of light when needed. The headlamps are usually operated off a 12 volt battery pack that you carry on your belt. YOu can paint the hat any color you want, including camo, but I like them blaze orange so that people don't mistake me for the boar. At night, the light is so low that any blaze orange appears to be grey, to both humans and hogs.I have never seen any advantage to wearing camo clothes at night, and several disadvantages.
