I was up in the air on which sights to buy for my Gen4 G34, and I decided that since I probably was not going to conceal carry it, I did not need any type of night time reference point. Also since the G34 is the competition model, accuracy will be the most important part of the gun. I decided to go with some sights that received good reviews for accuracy and since Kyle Defoor's name is on them (not literally, but you get the point) I pretty much figure they are the real deal. I read a post on Defoor's blog and after that I decided to get them, I know these sights have been out for a while, better late then never right? I have been using and carrying the GL-201, Ameriglo Pro-I dot on my Gen4 G19 and G17. Excellent sights in my opinion and they offer the best of both worlds in terms of accuracy and night time, low/no light, application. So this is less of a review (although I will review the GL-201 later), more of a physical comparison and my initial observations on the difference between the two.
The different in the two sets of sights, per the Ameriglo website are:
Defoor:
.115” wide serrated front sight with a flat black rear with a .150” rear notch.
Pro-I dot:
.140" wide front front sight with Single Dot Rear (green tritium, no outline) featuring a .180" rear notch
Different angle/view:
While the rear sight is smaller and has a lower profile on the Defoor's, the front sight is still very small small while looking through the it, not like the Pro-I dot, where the front sight has a large, more hefty presence which allows for a faster acquisition. Yes, obviously it does it has a great bit orange ring, I know. Pictures of the front sight through the rear sight, you can see there is a difference in the amount of space between the notches.
I will probably run the G34 a few times in some type of timed event and see just how fast the difference is between the two sights are, obviously a G17 is slightly different than a G34, but I feel as though the Pro-I dot's will be slightly faster to acquire then the Defoors. Only time will tell.