SEE ALL has release their new Tritium NITE site;
https://shopquestar.com/shopping65/s...?id=2807&bc=no
The See All Nite Rail Site is a one-piece, Tritium lit open sight that can be attached to virtually anything with a rail.
It is the first of its kind in open-sight shooting technology: an open sight that allows the shooter to see both the target and the sight itself in perfect focus, simultaneously. It’s designed to have a range of about 100 yards, since the target is viewed with the naked eye.
The use of Tritium enhances its effectiveness in low-light situations, and requires no batteries.
It has an adjustment range of about 150 inches vertically and 150 inches horizontally at 100 yards.