Ok, so I recently bought a G&G Scar-L and put my Bravo holographic sight on it. I was outside the other day shooting it and it was perfectly fine but today when i turned it on, instead of it having the normal crosshairs, it was just a giant circle! Im not positive but i think there is a little cap that goes on the light source to give it its shape and that might have possible come off but i have no clue how to fix it.