IMO,most fiber optic sight (green) will work well in low light if you shoot with both eyes open, and a large peep. I have never had a problem myself getting shots late. If I can't get a shot, it's usually too dark to be shooting anyhow. There are some REAL bright sights out there these days, but you don't need to spend $100 or more to get a nice one that will work well.

If you don't shoot both eyes open with a large peep, you will probably need one of the brighter sights in order to make it happen.

Of course....there's always the ArthurP method