Long review but informative. Must buy. My affordable go to.

Good sights, well finished, easily installed, and durable. Notthe brightest glow but still pretty good. Sharp aim at night nice and bright.

The rear sight is below my trijicon rmr. They really aren't on target at any range zero (a couple inches low) to 50 yds (a foot low) shot in low light and was almost impossible to see my front sight. Does not fit glock 40 mos with red dot.

The problem is when i order these thru amazon, the sellers will send you ones that have tiny factory flaws. Attempted to return on amazon, of course they are not eligible for return. Probably pawning off their defective junk.