Sighted in the new sights today and the pistol is very accurate at 15 yards. However the rear sight is drifted noticeably to the right to shoot dead center. The factory sights were drifted slightly to the right and still shot left.
I am happy with the sight picture and accuracy, but I wonder how common is this for the rear sight not to be centered?
I own 4 glocks in 9mm and all of my rears are drifted right to be center at 25yards
There is a good chance this is a trigger pull issue.
The pistol was bench rested for sighting and the groups were tight. I don’t think in this case I pulled off the point of aim.
I am not saying this was for sure a trigger issue but it is still a possibility. It is possible to so consistently pull the trigger in a non-straight line with Glocks among other handguns that you get a tight grouping but it is deviated horizontally from what it should be. Not saying it is certainly the problem, but rather saying it coupd be the problem.
I know exactly what you mean… with the heavy Glock trigger it would be more likely to pull to the right than push to the left.
Gentlemen, on Glocks the rear sight has to be noticeably to the right to shoot dead center. It is a design characteristic.
Good to know. It seemed odd to me. When I researched this it appeared not to be a consistent condition. So I wondered how common it was and of course wondered why this was needed to shoot to POI.
I have a 19 with the exact same issue. I had to drift right to have it shoot straight. Before anyone claims it is shooting technique, though, I have a G41 and the sights are perfectly aligned and I have no accuracy issue with it. I find it a bit bizarre that the 19 has this issue while the 41 does not.
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It could still be technique- the .45 is in the (longer) barrel longer than the faster 9mm
The Glock trigger pull can be pretty gritty so you could be slicing it then coming back on center
Another thing to keep in mind is if you are using thumbs forward and pressing your support thumb into the frame you can guide the gun right.
These are all possibilities but it is hard to say anything with certainty over the internet of course, the guns could just be out of spec but I don’t think it is that common.
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Baloney
Would some more Glock armorers chime in about this?
I am a Glock Armorer who was responsible for repair and maintenance of pistols for over 70 personnel. What you are describing is not a characteristic of the pistol.
I had a Glock 22 that required the rear sight be drifted noticeably to the right to zero windage at 25 meters. It was due to my vision; I was right handed and left eye dominant. This was not unusual, because I had my other pistols and rifles adjusted with the windage favoring the right due to my vision.
My vision has changed a great deal and Glocks I currently own have the rear sight centered on the slide.
You did not indicate if you are left handed and which eye is dominant. Do you have to wear prescription glasses? What size groups are you shooting? Overgripping with the support hand and/or shooting with the tip of the trigger finger can cause a right handed shooter’s shots to go left as well. More information would help the rest of us make intelligent suggestions.
Try benching it left (or opposite handed). If it changes, it’s your trigger pull. If not it’s the gun.
I’m just a regular dude, but I have run about a hundred folks through basic pistol instruction. You’d be surprised how many people tell me their pistols won’t “shoot straight” without the sights being drifted to the extreme. After a few tweaks, they discover it was their technique, not the gun.
Just out of curiosity- has the pistol shot to the left for other shooters? I used to have a problem with “side-loading” Glocks, i.e. my grip pressure was inconsistently forcing the gun to one side (typically at speed/multiple shots). Training tools like the SIRT and a lot of dry fire fixed the issue to where I can now consistently shoot 2-3" groups at 25 yards and a 1/2 size IPSC steel at 150 with a G19.
I’m not saying your gun is not truly shooting left; just that you might want to consider some other variables before determining that the sight has to be drifted to the extreme.
I have seen Glocks that actually did shoot left - even with the rear sight drifted all the way right and multiple accomplished shooters behind the trigger, they would still print noticeably left of center.
Having said that, in about 98% of the “left shooting” Glocks I’ve seen, including my own, the issue was shooter induced (side pressure on the grip, not keeping the finger flat across the face the trigger throughout the pull, too much finger, too little finger, etc). As much as everyone touts what an “easy” pistol the Glock is to shoot well, it’s really not. It takes a lot of practice on a specific skill set to be able to really get the accuracy out of them that accomplished shooters will crave.
The Glocks are easy to shoot FAST, no doubt about it, but, if all we want to do is make the banging noise, there are better tools…
With very few exceptions factories make no effort to zero guns and a sight centered ( roughly) in the dovetail is a starting point. Depending on your accuracy demands it may or may not need adjustment. Most all my fixed sight guns have needed a tweak here or there to get them dead on to my standards.
Adjustable sights do address a need.
If groups are tight and consistent then moving the sight is the right answer
The rear sight not being centered on the slide when zeroed for windage should not be a big concern unless the rear sight is drifted all the way to one side of the slide. Your vision or shooting technique may make the shots go left with the rear sight centered. I am right handed/left eye dominant, so my rear sights are all adjusted to the right of center. Some drifting of the rear sight to correct for windage is not unusual.
Trigger technique, pressure on the grip, position of the support hand, your support hand index finger on the front of the trigger guard and vision can be factors that affect POI. I have run people through shooting courses who were shooting left of center with a Glock and by the end of the first day or beginning of the second day they were shooting dead center without a sight adjustment.
Does the pistol shoot to the left with several different kinds of ammunition? Does the weapon shoot to the left when one of your shooting buddies fires it?
Big concern for the quality of this site that this comment was not laughed all the way back to TOS where it would be right at home.
Biggest line of garbage I’ve seen in some time. Classic that it’s in the form of a PSA.
You Suck It’s Not The Gun.