Why do you think you need a light on your gun? I look at a light as a target at night or dark areas. You have a light on your pistol, you are using it, where is your body? Light on long gun, most are to the left a very few to the right side. Very few bad guys are using a light. Lights show where you are as a target! Just my thoughts from being shot at and shoting back in my youth!
If you use a light is on a pistol or long gun?