D4- Standard, D2- Twin Dot, D5- Twin Green Fiber Optic, D3- Twin Tritium
Gotcha. You titled your thread "pri ghost ring sights" so I assumed that you meant Precision Reflex, Inc.
when you actually meant "psi" Precision Sales International, Inc. Most posters here are more familiar with XS Sights, so here are some of their pictures also. I do think that the double aperture GRS in the first picture that I posted (or something similar) for both CQB and long shots is worth a second thought. Good luck, buck440
Tritium sights on the rear aperature tend to overpower the front sight due to their proximity to the eye. They really aren't needed. ...Many folks assume that top of the post is what should be centered in the rear ghost ring. On conventional peep sights or GRS, that would be correct. With an XS BigDot front sight, you need to have the center part of the dot (the tritium element) centered. That tends to put buckshot patterns wherever the dot goes and slugs at the apex of the dot... The human brain likes to center circles within circles...The larger the rear aperature, the quicker (but less precise, theoretically) the brain can do....