I think you need to do a little more research into the ACOGs. They have a tritium source in them that makes them excellent for night use without having to depend on a battery for illumination. I have Trijicons on both my SCARs and several other weapons and all are very good at night. Trijicon may make a low end ACOG without the tritium source and maybe that is what you are thinking about or you are looking at a Chinese knockoff.