Imagine you’ve got your trusty Glock 21 Gen 4, a powerful and reliable handgun. Now, you need a safe and comfortable way to carry it. But where do you even start looking for the perfect holster? It can feel like a puzzle with so many different types and brands out there!
Finding the right holster is super important. You want something that keeps your Glock secure, but also lets you get to it quickly when you need it. A bad holster can be uncomfortable, make it hard to draw your gun, or even be unsafe. That’s why picking the right one for your Glock 21 Gen 4 matters a lot. It can be confusing to know which features are best for you.
In this post, we’ll break down everything you need to know about holsters for the Glock 21 Gen 4. We’ll talk about what makes a good holster, different styles you can choose from, and what to look for to make sure it fits your needs perfectly. By the end, you’ll feel much more confident about choosing the best holster for your needs.
Our Top 5 Holster For Glock 21 Gen 4 Recommendations at a Glance
Top 5 Holster For Glock 21 Gen 4 Detailed Reviews
1. POLE.CRAFT Holster for Glock 20 21 22
Rating: 8.9/10
The POLE.CRAFT Holster for Glock 20 21 22 is designed for secure and comfortable concealed carry. This inside-the-waistband (IWB) Kydex holster is precisely made for specific Glock models, ensuring a snug fit. It’s built tough and made to last. You can carry your pistol with confidence, knowing it’s protected and hidden. This holster helps you stay safe wherever you go.
What We Like:
- It’s made from sturdy .08” Kydex, which is lightweight and very durable.
- The holster is sweat-proof, waterproof, and easy to clean.
- You can easily adjust the angle (cant) of the belt clip with a screwdriver. This helps you draw your gun faster and hide it better.
- The belt clip is strong, made of nylon and fiberglass, and can be adjusted from 0 to 15 degrees.
- You can adjust how tightly the gun fits in the holster using a screwdriver. This lets you find the perfect balance for drawing and re-holstering.
- It can also be used as an outside-the-waistband (OWB) holster.
- The company offers a lifetime warranty for peace of mind.
What Could Be Improved:
- The holster is specifically for right-hand draw. Left-hand users would need to find a different option.
Overall, this holster offers excellent protection and customization for Glock owners. Its durable construction and adjustable features make it a reliable choice for everyday carry.
2. Glock 20 OWB Holster – USA Made – Fits Glock 20
Rating: 9.1/10
For Glock 20 and 21 owners seeking a reliable outside-the-waistband holster, Blade-Tech Holsters presents their Signature OWB model. This USA-made holster is built tough from high-strength, heat-resistant polymer, promising a superior fit that’s both secure and comfortable for open carry. Whether you’re running a Gen 3, 4, or 5 Glock, this holster is designed to hold your firearm with confidence.
What We Like:
- It’s made in the USA with strong, heat-resistant polymer.
- The holster offers a great, secure fit for Glock 20 and 21 models (Gen 3-5).
- It works with many different belt attachments, including the included Tek-Lok.
- You can adjust how tight the holster holds your gun.
- The trigger guard positively locks your firearm in place.
- It fits most red dot sights and suppressor height sights right out of the box.
- Blade-Tech offers a lifetime warranty, showing they stand behind their product.
What Could Be Improved:
- While it fits many optics, some very specific or unusually shaped red dots might require checking compatibility.
- For those who prefer a very slim, minimalist holster, this OWB design will naturally be bulkier than an IWB option.
This Blade-Tech Signature OWB holster is a solid choice for anyone looking for a durable and secure way to carry their Glock 20 or 21. The combination of USA-made quality and thoughtful features makes it a dependable option for everyday carry.
3. CYTAC OWB Holster for Glock 21 Gen 1 2 3 4 / Glock 21 SF – Index Finger Released
Rating: 8.6/10
The CYTAC OWB Holster is designed for Glock 21 owners who need a secure and accessible way to carry their firearm. It fits various Glock 21 generations and the Glock 21 SF, making it a versatile option. This holster offers a Level II retention system, meaning your pistol locks in place automatically and makes a satisfying “click” when secured. You can quickly draw your weapon by pressing a button with your index finger.
What We Like:
- It automatically locks your Glock 21, keeping it safe.
- You can easily draw your gun with your index finger.
- The holster is made from strong military-grade polymer, so it’s tough and light.
- It’s easy to clean and maintain.
- The paddle attachment can spin all the way around, letting you wear it on different belts.
- It works well for daily carry, even in different weather.
- It’s suitable for police officers, security personnel, and anyone needing personal protection.
What Could Be Improved:
- It will not fit a Polymer80 Glock 21 with a picatinny rail.
This holster provides excellent security and quick access for your Glock 21. It’s a reliable choice for various carrying needs.
4. Glock 20 IWB/OWB Modular Holster – USA Made – Fits Glock 20 21 (Gen 3
Rating: 9.0/10
The Blade-Tech Total Eclipse 2.0 Holster is a versatile and reliable choice for carrying your Glock 20 or 21. Made in the USA with strong, heat-resistant polymer, it offers a snug fit that feels even better than Kydex. You can trust it to keep your firearm secure and comfortable, whether you’re heading to the range or out for the day.
What We Like:
- Made in the USA with high-strength, heat-resistant polymer for durability.
- The Mod-Lok System lets you switch carry styles (IWB/OWB) quickly and easily without tools.
- It’s ambidextrous, so both right and left-handed shooters can use it comfortably.
- Adjustable retention screws let you customize how tightly your Glock fits in the holster.
- The positive lock trigger guard gives you a clear “click” when your gun is safely holstered.
- It’s designed to work with most red dot sights and suppressor height sights.
- Blade-Tech offers a Carry Confident Lifetime Guarantee, showing they stand by their product’s quality.
What Could Be Improved:
- While the Mod-Lok is easy to use, some users might prefer a more traditional attachment system.
- The polymer, though strong, might not offer the same level of flex as some other holster materials.
This holster provides excellent security and adaptability for your Glock 20 or 21. Its thoughtful design and strong warranty make it a solid investment for any firearm owner.
5. Glock20/21/22 Holster IWB Kydex Holster Fit: Glock 20 21 22 (Gen 3 4 5) Pistol – Inside Waistband Concealed Carry – Adjustable Cant & ‘Posi-Click’ Retention – No Wear/Jitter – US Made by Amberide
Rating: 9.1/10
The Amberide Glock 20/21/22 IWB Kydex Holster offers a secure and comfortable way to carry your pistol concealed. It’s built tough and designed for a perfect fit with specific Glock models, ensuring your firearm stays put and protected. This holster is made in the USA and comes with a lifetime warranty for peace of mind.
What We Like:
- It’s made just for Glock 20, 21, and 22 pistols (Gen 3, 4, and 5).
- The Kydex material is tough, waterproof, and easy to clean.
- You’ll hear a “CLICK” when your gun is safely in place, so you know it’s secure.
- You can adjust the angle of the belt clip for your comfort.
- The tightness of the holster can be adjusted for a quick draw.
- It’s available in many colors and for both right and left-handed shooters.
- It’s made in the USA and has a lifetime warranty.
What Could Be Improved:
- It won’t fit if you have lights or lasers attached to your pistol.
- You need to choose the correct hand (Right/Left) when ordering.
This Amberide holster is a solid choice for anyone needing reliable concealed carry. Its custom fit and secure retention system make it a dependable option.
Choosing the Right Holster for Your Glock 21 Gen 4
Picking the perfect holster for your Glock 21 Gen 4 is important. A good holster keeps your firearm safe and lets you get to it quickly when you need it. This guide will help you find the best one.
Key Features to Look For
When you shop for a Glock 21 Gen 4 holster, keep these features in mind:
- Retention: This is how well the holster holds your gun. Look for adjustable retention screws. These let you tighten or loosen the grip on your Glock. A good click tells you your gun is secure.
- Draw Speed: How fast can you pull your gun out? Some holsters have features that help you draw smoothly. Finger rests or open-top designs can speed things up.
- Comfort: You’ll be wearing this holster for a long time. It should feel good against your body. Padded backing or breathable materials make a big difference.
- Concealment: If you plan to carry your Glock hidden, the holster’s profile matters. A slim design helps it disappear under your clothes.
- Mounting Options: How will you wear the holster? Common options include belt loops, paddle attachments, or clip-on styles. Some holsters let you switch between these.
Important Materials
The material of your holster affects its durability, comfort, and how well it protects your Glock.
- Kydex: This is a very popular plastic. It’s strong, durable, and holds its shape well. Kydex holsters offer excellent retention and a consistent draw. They are also easy to clean.
- Leather: Leather holsters look classic. They can be very comfortable, especially after they break in. Leather can mold to your body over time. However, leather can absorb moisture and may wear out faster than Kydex.
- Nylon (Cordura): Nylon holsters are often softer and more flexible. They can be a good choice for comfort and concealment. Some nylon holsters have a Kydex insert for better retention. They are usually more affordable.
Factors That Improve or Reduce Quality
Several things can make a holster great or not so great.
- Fit: The holster must be made specifically for the Glock 21 Gen 4. A universal holster might not fit perfectly. A snug fit prevents your gun from rattling or falling out.
- Craftsmanship: Look for clean stitching and smooth edges. Well-made holsters last longer and feel better. Poorly made holsters can snag on clothing or scratch your gun.
- Adjustability: As mentioned, adjustable retention is a big plus. Some holsters also let you adjust the cant (the angle of the holster). This helps you find the most comfortable drawing position.
- Durability: A quality holster should withstand daily use. It should resist scratches and wear. Cheap materials will break down quickly.
User Experience and Use Cases
How people use their holsters can vary a lot.
- Concealed Carry: Many people use holsters for everyday carry (EDC). They need a holster that is comfortable for long periods and hides their Glock well. Inside-the-waistband (IWB) holsters are popular for this.
- Open Carry: Some users prefer to carry their Glock openly. This might be for sport shooting or certain professions. Outside-the-waistband (OWB) holsters are common here. They often offer easier access and better ventilation.
- Range Use: Shooters at the range often use OWB holsters. They need something that allows for fast draws and re-holstering. Duty-style holsters with extra security features are also used.
- Home Defense: For home defense, a holster that keeps your Glock secure but accessible is key. It prevents accidents while ensuring you can grab your firearm quickly if needed.
Frequently Asked Questions (FAQ)
Q: What is the best material for a Glock 21 Gen 4 holster?
A: Kydex is often considered the best for its durability, retention, and ease of maintenance. Leather is a comfortable alternative, and nylon offers a budget-friendly option.
Q: Can I use a holster made for a different Glock model?
A: It’s best to use a holster specifically designed for the Glock 21 Gen 4. Different models have slightly different dimensions, which can affect fit and retention.
Q: How do I know if my holster has good retention?
A: When you insert your Glock, it should feel snug. Some holsters make a distinct “click.” You can also test it by carefully tilting the holster upside down; the gun should not fall out.
Q: What is “cant” on a holster?
A: Cant is the angle at which the holster sits on your belt. Adjusting the cant can make drawing your firearm more natural and comfortable.
Q: Are Kydex holsters comfortable for all-day carry?
A: Yes, many Kydex holsters are designed for comfort. Look for ones with padded backing or smooth edges that won’t dig into your skin.
Q: How do I clean my Kydex holster?
A: You can usually clean Kydex holsters with mild soap and water. Dry it thoroughly before re-inserting your firearm.
Q: What is an Inside-the-Waistband (IWB) holster?
A: An IWB holster is worn inside your pants. It offers excellent concealment.
Q: What is an Outside-the-Waistband (OWB) holster?
A: An OWB holster is worn on the outside of your pants. It’s often easier to draw from and can be more comfortable.
Q: Should I get a holster with a thumb break or retention strap?
A: These offer extra security. They are good for situations where you need to prevent accidental discharge or keep your firearm from being taken. However, they can slow down your draw.
Q: Where is the best place to buy a holster for my Glock 21 Gen 4?
A: You can find holsters at gun stores, online retailers specializing in firearm accessories, and directly from holster manufacturers.
In conclusion, every product has unique features and benefits. We hope this review helps you decide if it meets your needs. An informed choice ensures the best experience.
If you have any questions or feedback, please share them in the comments. Your input helps everyone. Thank you for reading.
Hi, I’m Mette Morgan—a lifelong pet enthusiast and the heart behind PetNobs.com.. My journey with animals began at an early age, and over the years, I’ve gathered invaluable experiences and insights on everything from everyday pet care to the unique quirks each animal brings to our lives. Here at PetNobs, I share my genuine passion, practical tips, and personal stories to help you create a loving, well-informed environment for your furry, feathered, or scaled friends. Welcome to my little corner of the pet world—it’s a joy to have you here!