Here you go, very inexpensive. I use this when I go thin out coons at my feeders on a .223. Bought a couple of mag light holders from Cabellas that you attach to a wall or something to secure your light. Paid , I think $5.00
Bolted them toghether like this.
Then you add your light, mag light, Surefire, or something else. I have three that I use from 75 candle to 280 candle watt.
Now I can attach it to what ever I want, bow stabilizer or scope.