Originally Posted by
octagon
Update:
I just got out my gun, sight tools,calipers and old sights from my Glock 23 that I had replaced with the HD sights. I pulled the rear sight (Spaulding) from the Gen 4 19 and measured it. It measures .26" at the high point from bottom of the dovetail to top of the sight on the edge right near the notch. The old Trijicon 3 dot night sights removed from my 23 measure .23" at the same point. I took several measurements to ensure it was repeatable and they all came back .26-.27 for the Spaulding rear and .23 each time for the Trijicon. I don't know if that is enough to be print 5" high at 25 yards but it would indicate higher hits with a taller rear correct?
The front sights appear to be the same height between the Spaulding and the Trijicon 3 dot night sight but I don't want to pull the Spaulding front if I can find a solution that keeps it for free. I will try and get out to shoot soon and see what the results are. I will take the sights (new and old as well as a brand new set of Meprolight and Trijicon 3 dot night sights I have and change sights at the range if need be.
ETA Glock uses different height rear sights to adjust a +0 is 6.5mm tall and a +1 is 6.9mm tall so it appears the mark on the front sight is just a nick or gate mark.
I'll post the results. Does anyone know how to determine if the stock Glock plastic sights are normal height or if they put different height plastic sights on from the factory how to tell which is what I had on mine stock? There are no letters or numbers on the sights but there is a nick,injection molding gate mark or possibly a "D" on the right side of the plastic front sight. Very tiny so even with reading glasses and a magnifying glass and a flashlight I can only guess it is a D if it isn't just a nick.