Imagine this: you’ve got your trusty Glock 21, a powerhouse of a handgun, ready for action. But how do you carry it safely and comfortably? Choosing the right holster isn’t just about holding your gun; it’s about security, quick access, and making sure it stays put, no matter what you’re doing.
The problem is, the world of Glock 21 holsters can feel overwhelming. You want something that fits perfectly, offers good protection for your firearm, and lets you draw it smoothly when you need it. But with so many materials, styles, and retention levels out there, it’s easy to feel lost. Are you worried about your Glock falling out, or about it being too bulky to carry discreetly? We get it.
That’s why we’ve put together this guide. By the time you finish reading, you’ll understand the different types of holsters available for your Glock 21 and know exactly what features to look for. We’ll break down the pros and cons so you can confidently pick the holster that’s perfect for your needs, whether you’re heading to the range or carrying it every day. Let’s dive in and find the ideal home for your Glock 21.
Our Top 5 Glock 21 Holster Recommendations at a Glance
Top 5 Glock 21 Holster Detailed Reviews
1. POLE.CRAFT Holster for Glock 20 21 22
Rating: 9.3/10
For Glock owners who prioritize discreet and secure carry, the POLE.CRAFT Holster for Glock 20 21 22, IWB Kydex Holster (Black, Right Hand Draw) offers a reliable solution. This inside-the-waistband (IWB) holster is specifically designed for Glock 21, Glock 20 (Gen 3, 4, 5), and Glock 22 Gen 5 pistols, ensuring a snug and precise fit. It’s built for comfort and confidence, allowing you to carry your firearm hidden and protected wherever you go.
What We Like:
- This holster is crafted from .08” KYDEX, making it lightweight, sturdy, and incredibly durable.
- It’s sweat-proof, waterproof, and washable, so you can keep it clean and comfortable even during active days.
- The holster covers your entire pistol, preventing sweat from reaching your firearm and keeping your clothes from snagging on the clips.
- You can easily adjust the cant (the angle of the holster) using a standard Phillips screwdriver. This helps with faster gun removal and better concealment under your clothes.
- The nylon + fiberglass belt clips are secure and adjustable from 0 to 15 degrees to match your carrying style.
- Retention pressure is also adjustable with a Phillips screwdriver, allowing you to find the perfect balance for quick draws and secure storage.
- POLE.CRAFT backs this holster with a lifetime warranty, giving you peace of mind with your purchase.
What Could Be Improved:
- While adjustable for cant and retention, the holster is specifically for right-hand draw, meaning left-handed users would need to look for a different option.
Overall, the POLE.CRAFT Holster is a well-built and customizable option for Glock owners seeking reliable concealed carry. Its durability and adjustable features make it a strong contender for everyday protection.
2. CYTAC OWB Holster for Glock 21 Gen 1 2 3 4 / Glock 21 SF – Index Finger Released
Rating: 8.8/10
The CYTAC OWB Holster is designed for Glock 21 owners who need a secure and reliable way to carry their firearm. It fits Glock 21 Gen 1, 2, 3, and 4, as well as the Glock 21 SF. This holster keeps your pistol safe and accessible when you need it.
What We Like:
- It offers Level II Retention, meaning your Glock locks in place automatically with a “click” for security.
- You can draw your pistol quickly with a simple index finger press on the release button.
- Made from strong military polymer, it’s lightweight and easy to keep clean.
- The skidproof stripes help you find the release button by touch.
- The paddle attachment rotates 360 degrees, so you can wear it on different belts, up to 2 inches wide.
- It’s open at the bottom, which is great if your Glock 21 has a longer barrel.
- This holster works well for everyday carry, even in different weather conditions.
- It’s suitable for many users, including those in law enforcement, shooting enthusiasts, and for personal protection.
What Could Be Improved:
- It is not compatible with Polymer80 Glock 21 models that have a picatinny rail.
This holster provides a secure and convenient carry option for your Glock 21. It’s a solid choice for anyone prioritizing safety and quick access to their firearm.
3. 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: 8.7/10
The Amberide IWB Kydex Holster is built for Glock 20, 21, and 22 pistols, covering generations 3, 4, and 5. It’s designed for comfortable inside-the-waistband concealed carry. This holster is made from tough .08″ Kydex and uses special molds, ensuring your gun stays protected and doesn’t get scratched or move around inside. It’s also waterproof and easy to clean, with a sweat guard to keep your pistol in great shape.
What We Like:
- It fits Glock 20, 21, and 22 pistols from Gen 3 to Gen 5 perfectly.
- The “Posi-Click” retention system makes a clear sound when your gun is safely holstered.
- You can adjust the belt clip angle (0° to 30°) for your comfort using the included Hex Key.
- The retention screw can be tightened or loosened for your ideal draw speed.
- It’s made in the USA and comes with a lifetime warranty for peace of mind.
- The Kydex material is durable, waterproof, and easy to wash.
- It has a sweat guard to protect your firearm.
- There are 12 color options and choices for right or left-hand draw.
What Could Be Improved:
- It is not compatible with pistols that have light or laser attachments.
This holster offers a secure and customizable way to carry your Glock. Its durable American-made construction and adjustable features make it a reliable choice for everyday concealed carry.
4. Blackhawk
Rating: 8.6/10
The Blackhawk SERPA Sportster holster is a great choice for safely carrying your Glock 20, 21, 37, or Smith & Wesson M&P .45 and Pro 9/40. Its smart design helps you draw your firearm quickly and securely.
What We Like:
- It has a SERPA Auto Lock that keeps your gun safe.
- You can adjust the passive retention to make it fit just right.
- The holster body is a cool gunmetal gray with a black locking part.
- The speed cut design lets you draw and re-holster your gun very fast.
- It makes a loud click when you put your gun back, so you know it’s secure.
- This holster can work with shoulder, S.T.R.I.K.E., Quick Disconnect, and Tactical Holster Platforms.
What Could Be Improved:
- This version only comes with a paddle platform, so you might need to buy other attachments separately.
This holster offers excellent security and quick access for your pistol. It’s a solid option for anyone needing a reliable way to carry their compatible firearm.
5. Glock 20 OWB Holster – USA Made – Fits Glock 20
Rating: 9.0/10
The Blade-Tech Signature OWB Holster is built tough for your Glock 20 or 21. It’s made in the USA from strong, heat-resistant plastic that holds up well. This holster fits your gun snugly and keeps it safe and secure when you carry it outside your waistband. It’s designed for right-hand shooters and works with Glock 20 and 21 models from Gen 3 to Gen 5.
What We Like:
- Made right here in the USA with strong materials.
- Fits your Glock 20 or 21 perfectly, even with red dot sights.
- You can adjust how tight the holster holds your gun.
- It has a special lock that tells you your gun is safely in place.
- Comes with a clip that fits belts from 1.5 to 2.25 inches wide.
- Blade-Tech backs it with a lifetime guarantee against damage.
What Could Be Improved:
- The Tek-Lok attachment might feel a bit bulky for some users.
- While it fits many optics, very large or unusual ones might not work.
This holster offers excellent security and a custom fit for your Glock. It’s a solid choice for anyone wanting a reliable OWB holster.
The Ultimate Buying Guide: Finding the Perfect Glock 21 Holster
When you own a Glock 21, you need a safe and reliable way to carry it. That’s where a good holster comes in. It keeps your pistol secure and accessible. This guide will help you pick the best one.
Key Features to Look For
There are a few important things to consider.
Retention Level
This is how well the holster holds your Glock 21.
- Level 1: Basic retention. Your finger or thumb releases the pistol.
- Level 2: Adds a strap or hood that goes over the slide. You need to press a button or lift the strap to draw.
- Level 3: Has two or more retention devices. This offers the most security.
Draw Speed
How quickly can you get your Glock 21 out of the holster? A good holster lets you draw smoothly and fast when you need to.
Comfort and Fit
The holster should feel good when you wear it. It should also fit your Glock 21 snugly. A bad fit can be uncomfortable and make drawing difficult.
Concealment
If you plan to carry your Glock 21 hidden, the holster should help you do that. Some holsters are designed to sit closer to your body.
Adjustability
Can you adjust how the holster sits on your belt? Can you change the angle? Adjustability makes it easier to find a comfortable carry position.
Important Materials
The material of the holster affects its durability and how it performs.
- Kydex: This is a hard plastic. It’s very popular because it’s strong and holds its shape. Kydex holsters offer good retention.
- Leather: Leather holsters look classic and can be comfortable. They might need more care to keep them in good shape. Leather can sometimes mold to your Glock 21 over time.
- Nylon/Cordura: These are fabric materials. They are often lighter and more flexible. Nylon holsters can be good for concealed carry.
Factors That Improve or Reduce Quality
Some things make a holster better or worse.
Improvements
- Good Craftsmanship: Look for clean edges and strong stitching.
- Secure Fit: Your Glock 21 should click into place and not be loose.
- Adjustable Cant and Ride Height: This lets you customize how you carry.
- Comfortable Straps/Clips: If it has clips or straps, they should be strong and comfortable.
Reductions
- Poor Fit: A loose fit means your Glock 21 could fall out.
- Flimsy Material: Cheap plastic or thin fabric won’t last long.
- Sharp Edges: These can be uncomfortable and scratch your Glock 21.
- Difficult Draw: If you struggle to get your pistol out, the holster is not good.
User Experience and Use Cases
How you plan to use your Glock 21 matters.
- Everyday Carry (EDC): For daily use, comfort and concealment are key. Inside-the-waistband (IWB) holsters are popular for this.
- Open Carry: If you carry openly, you might want a Level 2 or 3 retention holster for extra security. Outside-the-waistband (OWB) holsters are common here.
- Range Use: At the shooting range, you want a holster that allows for a quick and smooth draw. Paddle holsters or OWB holsters work well.
- Duty Use: Law enforcement and security professionals need the highest level of retention and durability.
Frequently Asked Questions (FAQ)
Q: What is the best type of holster for concealed carry?
A: For concealed carry, inside-the-waistband (IWB) holsters are often the best. They sit close to your body and are easier to hide under clothing.
Q: Does my Glock 21 holster need to be specific to the model?
A: Yes, it’s very important. Holsters are designed for specific firearm models. A Glock 21 holster will fit a Glock 21 perfectly. Using the wrong one can be unsafe.
Q: How do I clean my Kydex holster?
A: You can clean Kydex holsters with mild soap and water. Use a soft cloth. Make sure it’s completely dry before putting your Glock 21 back in.
Q: Will a Glock 21 holster fit a Glock 30?
A: No, it’s unlikely. The Glock 21 is a larger pistol than the Glock 30. Holsters are made to fit the exact dimensions of a firearm.
Q: What is “cant” on a holster?
A: Cant is the angle of the holster on your belt. Some holsters let you adjust this angle for a more comfortable draw.
Q: Is a leather holster better than Kydex?
A: It depends on your needs. Kydex offers excellent retention and durability. Leather can be more comfortable and molds to your body. Both can be good choices.
Q: How do I break in a new leather holster?
A: You can draw your Glock 21 from it a few times. Some people use a plastic bag over the firearm and insert it into the holster. This can help loosen it up slowly.
Q: What does “retention” mean for a holster?
A: Retention means how securely the holster holds your firearm. Higher retention levels mean it’s harder for the gun to fall out accidentally.
Q: Can I use my Glock 21 holster for competition shooting?
A: Yes, if it allows for a fast and smooth draw and has a suitable retention level for the competition rules. Speed and reliability are important for competition.
Q: How often should I check my holster for wear and tear?
A: You should check your holster regularly, perhaps once a month. Look for any cracks, loose screws, or worn-out clips. This ensures it remains safe and effective.
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 Hector Quintanilla, the creator of helmetslab.com.. As a passionate enthusiast and experienced expert in helmets, I’ve dedicated this platform to sharing my insights, knowledge, and hands-on experiences. Whether you’re seeking the best helmet for safety, comfort, or performance, my goal is to guide you with detailed reviews, tips, and advice. Ride safe, and let’s explore the world of helmets together!




