Glock sight questions (u-notch/idot, etc)

[MegademiC]

Is it correct to say that no u-notch I-dot rear sight exists for glock(23)?
I run I dot operator pros on my m&p and want the same setup for my glock.
Warren tactical looks to be the closest, but not a true u notch, more of a rounded square.

Also, I see different rear sights for 19/17/23/etc, 42/43, and 20/etc.
Are these different dovetails or just different hights?

[ChoppinFatTony]

Here you go, u-notch rear straight 8 set.
https://www.heinie.com/3185l-heinie-ledge-straight-eight-night-sight-set?___SID=U

Sent from my SM-G920T using Tapatalk

[_Stormin_]

Is it correct to say that no u-notch I-dot rear sight exists for glock(23)?
I run I dot operator pros on my m&p and want the same setup for my glock.
Warren tactical looks to be the closest, but not a true u notch, more of a rounded square.
What's difference between a "U" and a "Square Cut" sight notch in terms of performance or precision? Because IIRC what matters is the alignment of the top of the sights and the position of the front sight within the rear cut out itself, not the shape of said cut. Could be wrong. There may be something in my years that has slipped from my mind.


Also, I see different rear sights for 19/17/23/etc, 42/43, and 20/etc.
Are these different dovetails or just different hights? Slides are entirely different sizes and therefore, sights are different sizes. The 20/21 is wider than the 17/19/23, while the 42/43 is a very narrow slide.

As an added recommendation, the AmeriGlo Tritium I-Dot sights are a fine call for an "I-Dot" style sight.

[MegademiC]

Here you go, u-notch rear straight 8 set.
https://www.heinie.com/3185l-heinie-ledge-straight-eight-night-sight-set?___SID=U

Sent from my SM-G920T using Tapatalk

Square, not u-notch, unless I missed something.


What's difference between a "U" and a "Square Cut" sight notch in terms of performance or precision? Because IIRC what matters is the alignment of the top of the sights and the position of the front sight within the rear cut out itself, not the shape of said cut. Could be wrong. There may be something in my years that has slipped from my mind.

Slides are entirely different sizes and therefore, sights are different sizes. The 20/21 is wider than the 17/19/23, while the 42/43 is a very narrow slide.

As an added recommendation, the AmeriGlo Tritium I-Dot sights are a fine call for an "I-Dot" style sight.

The difference is I like the way the entire sight fits together, visually. Have you measured the performance difference on a timer, in various lighting? What did you find?

Thanks for slide feedback regarding different glocks.

[Campbell]

I bought a g19 a while back, it came with what I believe to be the ameriglo's mentioned above. Blackened rear with U notch, bright orange front with tritium center...they are super fast to get on, and I can still manage to shoots decent group slow fire.

[militarymoron]

I find the Warren flat-bottomed U-notch easier to use than a true rounded bottom U-notch. YMMV.

[26 Inf]

Is it correct to say that no u-notch I-dot rear sight exists for glock(23)?
I run I dot operator pros on my m&p and want the same setup for my glock.
Warren tactical looks to be the closest, but not a true u notch, more of a rounded square.

These are Warrens, the picture look like a 'U' to me: https://ads.midwayusa.com/product/125655/warren-tactical-night-sight-set-glock-17-19-22-23-24-34-35-1-dot-tritium-tactical-rear-1-dot-tritium-front-steel-matte-blemished?cm_mmc=pf_ci_google-_-Gunsmithing+-+Gun+Sights+(Metallic)-_-Warren+Tactical-_-125655&gclid=EAIaIQobChMIhpvqr7Tm1QIVEIZpCh1c5Q2iEAQYAiABEgLET_D_BwE

Also, I see different rear sights for 19/17/23/etc, 42/43, and 20/etc.
Are these different dovetails or just different hights?

Glock takes care of the differing sight radius's by altering the height of the rear sight. The aftermarket sights, such as Warren, are sold in sets that match the sight radius. Of course, you can also get differing widths and heights, usually on both front and rear, to match your tastes and POI.

The rear dovetails are the same, the front sight mounts the same.

Glock factory rears come in 4 differing heights 6.1mm - 6.5mm - 6.9mm - 7.3mm. They are marked by dashes, the 6.5 (std for 9/.40/.357/.380) has a long dash; the 6.1 has a long dash with a short dash UNDER it; the 6.9mm (std for 45ACP/10mm) has a long dash with a short dash OVER it; the 7.1 has a long dash with two short dashes OVER it.

Probably more than you wanted to know. :p

[26 Inf]

What's difference between a "U" and a "Square Cut" sight notch in terms of performance or precision? Because IIRC what matters is the alignment of the top of the sights and the position of the front sight within the rear cut out itself, not the shape of said cut. Could be wrong. There may be something in my years that has slipped from my mind.

The theory with the 'U' notch rear sights, I've been told, is that the rounded bottom makes it easier to align the dot in the center of the rear sight as the eye naturally aligns/centers the dot, similar to a full aperature sight.

Slides are entirely different sizes and therefore, sights are different sizes. The 20/21 is wider than the 17/19/23, while the 42/43 is a very narrow slide.

Probably more important, if you want to accurately hit @ 25 are the differing sight radius's.

[DirectTo]

Slides are entirely different sizes and therefore, sights are different sizes. The 20/21 is wider than the 17/19/23, while the 42/43 is a very narrow slide.
With regards to factory sights, the 17-size slide and 21-size slide do use the same width rear sights. You'll notice a lot of dead space on both sides of the 20/21 rear sights. The height (and possibly notch) is just different.

Of course the 42/43 use narrower sights.

[MegademiC]

Thanks for the input all. I wanted a round bottom I notch as that's what I've used and like it. I'll price out the warrens vs ameriglo and see if it's worth it.

Edit: related question: where is the stock setup poi at 25yds? Mine seems to be quite high but not sure if it's me or not

[MegademiC]

Bumping this for one last question before I buy:

The Ameriglo gl-101r, I dot rear, what front sight gives poi to top of front sight?
I want to cut the target in half with the top of the front blade at 25yds. Will the gl-301 do that or do I need the gl-101r rear and a taller front sight?

I have an aftermarket barrel and think the poi shifted up. Right now I have glock factory night sights (.160 or .165" front, and "-" rear). This hits 6-7"high at 25yds.

[Hadoken]

I believe the vickers glock sights made by wilson combat have more of a True U notch or 10-8 makes some I think.
I know the vickers have a single rear tritium option.
After using the Vickers from Wilson I decided I like the warren tactical "rounded square" notch better but it's all personal preference.


Bumping this for one last question before I buy:

The Ameriglo gl-101r, I dot rear, what front sight gives poi to top of front sight?
I want to cut the target in half with the top of the front blade at 25yds. Will the gl-301 do that or do I need the gl-101r rear and a taller front sight?

I have an aftermarket barrel and think the poi shifted up. Right now I have glock factory night sights (.160 or .165" front, and "-" rear). This hits 6-7"high at 25yds.

[montgomerygentryFan]

My personal preference is having no tritium in the rear sight and having the U-notch feature found in the 10-8 sights. I have the latter installed on all my pistols for sight picture consistency. All or most have front tritium and all the same .140 rear U-notch sights.

http://www.10-8performance.com/glock-front-sight/

http://www.10-8performance.com/glock-rear-sight/


Prior to the 10-8 I had Heine SlantPros which were similar to the Vickers Tactical in that they had a single tritium rear dot, but straight ledge rear sights.

https://www.heinie.com/318p-glock-slantpro-straight-eight-night-sight-set-333?___SID=U


Since everyone is different see if you can go to a shop or ask buddies to see their sights, i.e. front and rear tritium (rear double dots and single) versus front tritium only. Depending on your vision and preference you might find you prefer one versus the other. I can only say from my end that having higher sights versus OEM height sights helped.

[17K]

I've tried just about all the popular sights on Glocks and real performance between any of 'em is so close it would be impossible to measure.

My #1 criteria for a rear sight is that it doesn't cut, poke, or scrape. Trijicon HDs are horrible, Warrens are almost as bad, all the adjustables I've seen were bad about it too. Ameriglo, Heinie, 10-8, Dawson, regular Trijicons, are fine.

As I've gotten closer to 40 I've developed a preference for a fiber optic or bright orange front, I used to do best with black on black.

My favorite sights are 10-8 and Heinies. I have 10-8s on my 34s, Heinies on my 17L. I really don't notice the shape of the notch, both have 10-8 fiber optic fronts. My 43 has Amriglo UC sights which have a wide U notch and a wide orange and tritium front. They're excellent, but a coarse sight picture that's not the best for precision, but great for a 43.