7 Best Glock Sights of 2021
Glocks will always rank highly when it comes to the most popular semi-automatic pistols regardless of the criteria that you use when ranking. And as perfect as they are, you can still make yours more accurate and reliable with the best Glocks sights.
With a good Glock sight, you can also increase the range of the pistol. But, due to the immense popularity of Glocks, there is a wide variety of options in the market. And so it is important to know the factors that define the good ones or what to look out for.
In this guide, we try to make things easier for you by reviewing 7 top-rated Glock sights, highlighting the factors to consider when choosing between them, and also provide some easy to follow installation instructions.
7 Best Glock Sights – Review
- 1. Ameriglo GL-201O – Best Overall
- 2. Meprolight 1001923 – Best 3-Dot Glock Sight
- 3. Truglo TG231G1 – Best Budget Sight for Glock
- 4. XS Sight Systems GL-0001S-5 – Fantastic Sight for Small Frame Glocks
- 5. Truglo TG231G1W – Sturdy and Accurate
- 6. Trijicon Iron Glock Sight – Versatile and Durable
- 7. Truglo TFO Tritium and Fiber Optic Glock Sight – Accurate Fiber and Tritium Optics
- How to Buy the Best Glock Sights
- How to Install Glock Sights
7 Best Glock Sights – Review
1. Ameriglo GL-201O (Best Overall)
2. Meprolight 1001923 (Best 3-Dot Sight)
3. Truglo TG231G1 (Best Budget)
4. XS Sight Systems GL-0001S-5 (Fantastic for Small Frame Glocks)
5. Truglo TG231G1W (Sturdy & Accurate)
6. Trijicon Iron Glock Sight (Versatile & Durable)
7. Truglo TFO Tritium and Fiber Optic Glock Sight (Accurate Fiber & Tritium Optics)
1. Ameriglo GL-201O
2. Meprolight 1001923
(Best 3-Dot Sight)
3. Truglo TG231G1
4. XS Sight Systems GL-0001S-5
(Fantastic for Small Frame Glocks)
5. Truglo TG231G1W
(Sturdy & Accurate)
6. Trijicon Iron Glock Sight
(Versatile & Durable)
7. Truglo TFO Tritium and Fiber Optic Glock Sight
(Accurate Fiber & Tritium Optics)
1. Ameriglo GL-201O – Best Overall
- Fits Model: 17, 19, 22, 23, 24, 26, 27, 33, 34, 35, 37, 38, and 39
- Dimensions: 1 x 1x 1 inches
- Weight: 0.8 ounce
- Material: Steel
While the three-dot Glock sights are the most popular, they are not the only options as there are other more relatively affordable setups like the two-dot Pro-IDOT from Ameriglo.
It uses high-quality tritium and so you can be sure of getting more than a decade of service from your sight. And the sight will work with most Glock models.
The sight takes little effort to install and almost any Glock owner can do it without any external help provided they follow the instructions.
Although it takes some time to get used to it, this will provide quick, accurate and simple target acquisitions once you master how to use it.
2. Meprolight 1001923 – Best 3-Dot Glock Sight
- Fits Model: G26 and G27
- Dimensions: 8.5 x 4.2 x 0.5 inches
- Weight: 0.8 ounce
- Material: Steel
The fact that Meprolight sights are well-regarded by many law-enforcement agencies across the globe should give you some confidence that their Tru-Dot Glock sight will serve you well.
It is top-quality 3-dot system sight that is available in different color combination option to make sure that you can get something that suits your particular shooting conditions. And it is made with a rugged steel housing to withstand the regular abuse for many years.
Like most other tritium Glock sights, it will provide excellent performance in the dark and low light conditions. The tritium is also high-quality and will give you many years of service, and to prove this the company provides a 12-year warranty.
This Glock sight is straightforward to install, and it should not take a lot of time to do it.
For daytime shooting, this Glock sight will not be very useful but this is not what it is made for and hence not a deal breaker. Also, it might not make one-handed operation easy but this is also not a bog concern.
3. Truglo TG231G1 – Best Budget Sight for Glock
- Fits Model: 17, 19, 22, 23, 24, 26, 27, 33, 34, 35, 37, 37, and 39
- Dimensions: 5.75 x 3.75 x 1 inches
- Weight: 1.28 ounces
- Material: CNC-machined steel
If you are in the market for the best Glock 19 sight, this will be a great buy for you. However, it also works for many other Glock models.
And when compared to other items on our Glock sights review, it is a relatively more affordable and lightweight sight that also comes with the impressive 12-year limited warranty.
It features a highly durable CNC-machined steel construction to ensure that it delivers many years of service. And it is also made with high-quality Swiss tritium to deliver maximum brightness for use in different lighting conditions.
This Glock sight has a snag-resistant design and will fit most holsters to ensure that it never affects the ease of drawing or concealing your Glock.
Installation can be a little hectic but it is still easy to figure out with a little patience and by following the provided instructions.
4. XS Sight Systems GL-0001S-5 – Fantastic Sight for Small Frame Glocks
- Fits Model: Glock 17
- Dimensions: 3.2 x 2 x 0.5 inches
- Weight: 1.6 ounces
- Material: Blued steel
There are many Glock sight options in the market but if you are looking for something that suits the small frame Glock 17, the XS 24/7 is your best choice.
This fantastic Glock sight comes with a large front sight that helps to increase the speed of front sight acquisition. And it uses a white dot to ensure that it reflects light for the best visibility in low light conditions.
With the low-profile design of this top-rated Glock sight, you can be sure that it will not slow your draw, and it will work with most holsters in the market.
Also, the express rear helps to prevent obstruction of the front sight when moving while the snag-free design makes it comfortable to carry and draw.
Installing this sight is also relatively easy, and you will not need sight pusher tools as it is a file to fit installation sight.
Being one of the priciest models on our list, some users might find this sight a little out of reach but the quality, design and overall performance will ensure value for every buck.
5. Truglo TG231G1W – Sturdy and Accurate
- Fits Model: 17, 17L, 19, 22, 23, 24, 26, 27, 33, 34, 35, 38, and 39
- Dimensions: 8 x 6.75 x 1 inches
- Weight: 2.1 ounces
- Material: CNC-machined steel
This Truglo product is one of the best Glock sights for accuracy when shooting at night thanks to the high-quality Swiss tritium that will also last for many years.
It is made from CNC-machined aluminum steel which makes it a highly durable sight that can withstand the regular recoils and general abuse that comes with the use and carrying of any firearm.
The sight is designed with a front sight Focus Lock ring that ensures that shooters get an even faster focus of the front sight.
There is also a quick and accurate U-notch design for the rear sight, and it also has an angled edge that will allow for emergency one-handed operation.
This Truglo sight also comes in a snag-resistant design, and it will fit most standard holsters to make it more convenient.
Although this sight is still not bright enough to be useful for full daylight shooting, it makes up for this with the superior low light and full darkness performance.
6. Trijicon Iron Glock Sight – Versatile and Durable
- Fits Model: 17, 17L, 19, 22, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 37, 38 and 39
- Dimensions: 1 x 1 x 1 inches
- Weight: 1.4 ounces
- Material: Aluminum polymer
Trijicon is a reputable gun accessories manufacturer that you can always trust to have a Glock sight to help improve the performance of your pistol.
This particular model is ideal for use in almost all Glock models, and it is made from an aluminum polymer for increased durability so that you get to use it for many years.
The Trijicon Glock sight is the priciest item on our list but like with most other gun accessories, you get what you pay for. And so you can be confident it is a top-notch quality product that will serve you well for long.
To ensure high visibility, the manufacturer uses a photoluminescent paint that will glow in the dark for easy target acquisition even in low light conditions.
The subdued rear sight design that features an angled and serrated surface helps to reduce glare. And the rear sight also has a unique U-shaped notch that will help enhance front sight acquisition.
And with the tritium-filled glass lamps to offer superior illumination in the dark and low light conditions, this sight ensures that you can use your Glock efficiently and effectively any time of the day.
When you compare this sight to others on our list it is a little expensive but for its quality, versatility and overall performance it is worth every buck.
7. Truglo TFO Tritium and Fiber Optic Glock Sight – Accurate Fiber and Tritium Optics
- Fits Model: 20, 21, 25, 29, 30, 31, 32, 37, 40, and 41
- Dimensions: 5.8 x 3.8 x 0.8 inches
- Weight: 1.28 ounces
- Material: CNC-machined steel
Truglo is another brand that you will always come across when searching for the best aftermarket Glock sights. And this is more so when you want the unique ones that combine both tritium and fiber optics.
The tritium and fiber optics combination helps to improve the overall performance of this particular sight. Also, it enhances both its reliability and accuracy while also ensuring it does not need any batteries or light exposure.
This Glock sight is made from a highly durable CNC-machined steel housing with a protective coating for enhanced durability.
And so besides the fast target acquisition, accuracy and durability, it will also last for a long time. But, the best part about it is that the fiber is concealed to ensure that the target never sees it.
Installation is the only thing that can give you a little challenge with this sight but if you have enough experience with Glocks it should be a straightforward affair.
How to Buy the Best Glock Sights
Here is what you need to consider to ensure you pick the most suitable Glock sight for your firearm.
The brightness of the Glock sight will determine whether it will be appropriate for use at daytime, night or both. And so it is an important factor to consider and probably one of the first things to look out for.
The best Glock sights are those that you can use both during the day and at night as you cannot be certain when you will need to use your pistol.
When it comes to the brightness, you will also have to make a decision on whether to go for sights that use tritium or fiber optics. But some models have both.
Tritium, and this is more so if it is the high-quality Swiss type like what you get on the Truglo TG231G1 always takes the day when shooting at night or in low light conditions while fiber optic sights are the best for daylight shooting. With the best fiber optic sights, shooting in full daylight should not be a problem.
The Glock sight that you buy has to withstand the regular abuse that comes with using and carrying a pistol and do it without adding a lot of weight to the firearm.
Glock sights made from metals like steel like Truglo TG231G1W and aluminum fit this description perfectly. These metals are not only lightweight but can also take the beating that results from repetitive recoil.
Sights with a plastic housing might be super lightweight but they are more prone to breaking than the metal ones.
3. Front Sight
The front sight of a Glock sight should have a large dot so that you focus towards the front and not rear.
For the front sight, the profile is in most cases a semi-ramp style and with the face of the sight facing away from the shooter.
The front area of the Glock sights will come in varying widths, and the width will help determine the accuracy and speed of the shot. Also, the wider the width the more of a disadvantage it becomes when shooting from long distances.
Most experts and highly experienced Glock shooters will recommend a front sight width of 0.125-inch as it provides the best balance between speed and accuracy.
4. Rear Sight
The factory standard for the rear sight on most Glock sights is the two-dot rears. These two dots are side by side and can either be tritium or be painted.
Rear sight gives off a softer glow to help you get the best possible shot. The importance of the soft glow is to help emphasize the front sight dot.
An important point to keep in mind is that when the rear and front dots are well lined up, you will get a more accurate sight and shot.
5. Ease of Use
Even if you get the best rated and best quality Glock sight, you will not be able to get the target if it is not easy to use.
Although many manufacturers try to make their sights as easy to use as possible, there are still some that will take a long time to get used to.
And so to avoid any disappointments, you should always look for an adaptable, highly versatile and straightforward to use sight as it will help improve your accuracy and is also more reliable.
6. Ease of Installation
A high-quality Glock sight that takes ages to install or requires you to take your pistol to the local gun shop for installation is not a good buy as it can be very inconvenient.
Like any other firearm sight, Glock sights will still take some effort and time to install but the process should be easy to comprehend.
Some clear and easy to follow installation instructions will also be very useful, and this is more so for the first-timers.
How to Install Glock Sights
Although it might sound and look complicated, installing a Glock sight is not that difficult and any firearm owner with some experience can do it.
But, first and foremost, you should always start by removing the magazine or all the ammunition in the pistol.
As obvious as this might sound, you would be surprised by the statistics on the number of people that still get injured when cleaning or maintaining their Glocks and other firearms.
What you will need
- Needle pliers
- Plastic punch
- Pencil and ruler
- Sturdy table or something similar
Step 1: Mark in Exact Sight Center:
The first step when installing a Glock sight should always be to mark in the exact center of the pistol’s frame. You can use the ruler to measure and once you identify the center, make a mark with the pencil.
Next mark the exact center of the sight as these marks will help ensure that you install the sight in the right orientation without having to go through trial and error.
Step 2: Remove Existing Sight
The chances are that your firearm came with some sight because most Glocks do. It is usually a standard plain black sight, and you need to remove it before you can install the new sight.
Use a Glock sight tool to remove the screws and then place the pistol in a c-clap or vice gently before hammering out the old sight.
Step 3: Clean the Pistol
Before installing your new Glock sight you will need to clean the pistol thoroughly to get rid of any debris and oil left behind by the old sight. Use rubbing alcohol for the best results. Cleaning the firearm will help create a clean foundation for installing your new sight.
Step 4: Install Front Sight
The front sight is always installed first and when installing it you will need to first apply a few drops of Loctite to the contact point of the firearm. And once you ensure that the Glock sight is lined up well on the pistol using the pencil marks that you made, you can proceed to tighten the screws to finish the installation.
Step 5: Test and Install Rear Sight
The last step is testing and installing the rear sight. Apply some pressure with your hand to test the rear sight, and the aim of doing this should be to establish whether it easily slides or if it is loose.
If the rear sight moves, you should use sandpaper to sweep the bottom back and forth at least five times. Keep doing this until it slides into place snugly.
Before doing the actual installation of the rear sight you need to first clean the area with alcohol. Once you do this you can now apply a few drops of Loctite to the contact point as you did with the front sight and then install the sight.
Note: The pistol requires at least 24 hours for the Loctite to dry, and also for the sights to fully set on your firearm.
Glocks are as close to perfect semi-automatic pistols as it can get, and you will hardly find anything better than them in the same class. And with our Glock sights review to help you choose a good sight you will even have a better firearm.
Each model on our list above has something good to offer but Ameriglo GL-201O is our top recommendation as it offers high-quality tritium, has a solid metal construction an dis also fairly priced.
But, for the budget shoppers, the Truglo TG231G1 is our recommendation as it is the most affordable model on our list.