The Meprolight FT Bullseye easily replaces the rear sights on standard size Glock and uses 2 points within the sight tube to aim; the circle at the back of the sight and the dot at the front. The result is you are still lining up the ‘rear’ circle with the ‘front’ dot to aim.
I mounted the FT Bullseye with minimal difficulty on my G17 Gen 4. The sight does take getting used to and I found myself trying to find the front sight at first. As I continued working with the sights I found that initial target acquisition from holster and re-acquisition during shooting seemed to be quicker than with stock sights. After about 1000 rounds and a few weeks working with the sights I put these feelings to the test. I compared two G17 Gen 4’s, all stock, with the exception of the sights, either the FT Bullseye or stock.
I compared the stock to FT Bullseye sight on three tests presented below (numbers are averages of 10 trials):
*Drawn from a Blackhawk Omnivore OWB right handed holster, time is from signal to first shot included only on accurate shots (within 1" of bullseye), distance is average distance of 10 individual shots from center of bullseye.
1. The data supports that initial and re-acquisition of target (once you have trained with these sights) is the big ‘sell’ here. I found I can re-acquire the sights very quickly even when switching targets compared to traditional sights.
2. These sights do tend to mirror the advantages of red dot sights without significantly changing the profile of your gun (I can use a standard G17 holster) and are always on (no on/off switch)
3. The disadvantage I found in the FT Bullseye sights for me (beyond the need to re-train to use them) is that my speed and accuracy are improved at closer ranges (5-7 yards) but accuracy goes down at 10 yards and further, still getting rounds on the target, but not in as tight groups.
4. The FT Bullseye does provide decent night sights in lower light situations, but as there is less and less light the harder it is to line up on the circle and dot (you must be right on the line between your eye, and the circle and dot in the tube to see it at all (when you do it is just as bright as Trijicon night sights. However, by comparison, Trijicon’s would win easily in very dark situations where it is easy to find all three dots no matter where your gun and eye currently are.
Meprolight FT Bullseye Green Dot retails for $199.95. So, are they worth the money? That depends, for me yes. Take a look at what you are wanting them for and if it is for faster “good enough” defensive shooting I would try them out, I am currently using them on my G17 Gen 4 that I routinely carry. The Mako Group website offers more information including detailed features and specs.