So I want to move my Colt 6951 out of the garage safe and into the bedroom. I have young girls and need to secure it from them firing it. Our room is small and I'm thinking of just a rifle bag with mag or trigger lock. I need a light that would work well with the Magpul MOE SL hand guard that I put on. Lastly a green dot sight to co-witness with Daniel Defense fixed rear iron site. I really want green as it seems to work better with my astigmatism.