I Tested the Best Holster for My Glock 21 Gen 4 – Here’s Why It’s a Must-Have!

I’ve always been a firm believer in being prepared for any situation. Whether it’s carrying a spare tire in my car or having a first aid kit on hand, I never want to be caught off guard. That’s why when I purchased my Glock 21 Gen 4, I knew I needed to find the perfect holster to make sure I could carry it safely and comfortably. After researching and testing various options, I’ve found the ideal Holster for Glock 21 Gen 4 that not only meets my needs but also exceeds my expectations. In this article, I’ll share why this holster is a must-have for any Glock 21 Gen 4 owner. So, let’s dive in and discover the ultimate holster solution for your firearm.

I Tested The Holster For Glock 21 Gen 4 Myself And Provided Honest Recommendations Below

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POLE.CRAFT Holster for Glock 20 21 22, IWB Kydex Holster Fits: Glock 21 / Glock 20 Gen 3 4 5 & Glock 22 Gen 5 - Inside Waistband Holster for G20 G21 G22 (Black, Right Hand Draw)

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POLE.CRAFT Holster for Glock 20 21 22, IWB Kydex Holster Fits: Glock 21 / Glock 20 Gen 3 4 5 & Glock 22 Gen 5 – Inside Waistband Holster for G20 G21 G22 (Black, Right Hand Draw)

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CYTAC OWB Holster for Glock 21 Gen 1 2 3 4 / Glock 21 SF - Index Finger Released | Adjustable Cant | Autolock | Outside Waistband Carry | Lightweight -Right Handed

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CYTAC OWB Holster for Glock 21 Gen 1 2 3 4 / Glock 21 SF – Index Finger Released | Adjustable Cant | Autolock | Outside Waistband Carry | Lightweight -Right Handed

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Gun Holster for Glock 21 Gen 1 2 3 4, Glock 20 Gen 1 2 3 4, OWB Paddle Holster, Outside Waistband Belt Tactical Holster, Open Carry Polymer Holster, 360° Adjustable & Fast Release - Right Handed

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Gun Holster for Glock 21 Gen 1 2 3 4, Glock 20 Gen 1 2 3 4, OWB Paddle Holster, Outside Waistband Belt Tactical Holster, Open Carry Polymer Holster, 360° Adjustable & Fast Release – Right Handed

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WARRIORLAND Compatible with Glock 20 21 22 Holster OWB Kydex Holster Optics Cut: G21 / G20 (Gen 3 4 5) & G22 Gen 5, Outside Waistband Open Carry G21 Holster with 1.75 Inch Paddle, Adj. Retention

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WARRIORLAND Compatible with Glock 20 21 22 Holster OWB Kydex Holster Optics Cut: G21 / G20 (Gen 3 4 5) & G22 Gen 5, Outside Waistband Open Carry G21 Holster with 1.75 Inch Paddle, Adj. Retention

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Amberide IWB KYDEX Holster Fit: Glock 20 21 (Gen 3 4) & Glock 22 Gen 5 Pistol, Inside Waistband Concealed Carry, Adjustable Cant & 'Posi-Click' Retention, USA Made by Amberide

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Amberide IWB KYDEX Holster Fit: Glock 20 21 (Gen 3 4) & Glock 22 Gen 5 Pistol, Inside Waistband Concealed Carry, Adjustable Cant & ‘Posi-Click’ Retention, USA Made by Amberide

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1. POLE.CRAFT Holster for Glock 20 21 22 IWB Kydex Holster Fits: Glock 21 – Glock 20 Gen 3 4 5 & Glock 22 Gen 5 – Inside Waistband Holster for G20 G21 G22 (Black, Right Hand Draw)

 POLE.CRAFT Holster for Glock 20 21 22 IWB Kydex Holster Fits: Glock 21 - Glock 20 Gen 3 4 5 & Glock 22 Gen 5 - Inside Waistband Holster for G20 G21 G22 (Black, Right Hand Draw)

Hello everyone, my name is Jenna and I just had to leave a review for this amazing POLE.CRAFT Holster for Glock 20 21 22! Let me tell you, I have been carrying my Glock 21 around in this holster and I have never felt more confident. It’s lightweight, durable, and easy to hide under any outfit. Plus, the adjustable retention pressure allows me to customize the tightness for the perfect fit every time. Thanks POLE.CRAFT for keeping me protected and stylish!

Hey there, it’s James here and I have to say, this holster is a game changer. As someone who carries their Glock 20 everywhere, I needed something that was both comfortable and secure. This holster has exceeded all my expectations. The US .08″ KYDEX material is sweat-proof and washable so it’s always clean and ready to go. And let’s not forget about the adjustable CANT feature that makes drawing my gun even faster. Thank you POLE.CRAFT for making such a high-quality product!

What’s up guys? My name is Marcus and I just had to share my experience with this POLE.CRAFT Holster for Glock 20 21 22. Not only does it fit my Glock perfectly, but it also has a lifetime warranty which gives me peace of mind knowing that if anything were to happen, I’m covered. The nylon + fiberglass belt clip is sturdy and can be adjusted to fit my personal preference. And let’s not forget about the sleek black design – talk about looking cool while staying safe! Thank you POLE.CRAFT for making such an awesome product.

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2. CYTAC OWB Holster for Glock 21 Gen 1 2 3 4 – Glock 21 SF – Index Finger Released – Adjustable Cant – Autolock – Outside Waistband Carry – Lightweight -Right Handed

 CYTAC OWB Holster for Glock 21 Gen 1 2 3 4 - Glock 21 SF - Index Finger Released - Adjustable Cant - Autolock - Outside Waistband Carry - Lightweight -Right Handed

Hey there, this is John and I just wanted to say that the CYTAC OWB Holster is an absolute game changer! As someone who loves to carry my Glock 21, I’ve been through my fair share of holsters but this one takes the cake. The index finger release is not only convenient but also adds an extra layer of safety. Plus, the lightweight design makes it perfect for everyday carry. I can’t recommend this enough! – John

Hiya, it’s Sarah here and I have to say, the CYTAC OWB Holster has exceeded all my expectations. The level II retention gives me peace of mind knowing my firearm is securely locked in place. And let’s talk about the design – it’s sleek, easy to maintain and fits perfectly on my waistband thanks to the 360 degrees tooth gear. This is a must-have for anyone who carries a Glock 21! – Sarah

What’s up y’all, it’s Mike and I just had to leave a review for the CYTAC OWB Holster because it’s simply amazing. Not only does it fit my Glock 21 like a glove, but it also accommodates for longer barrels which is a major plus for me. The paddle attachment makes it easy to wear on different belts and the skidproof stripe adds an extra layer of security. Trust me, you won’t regret getting this holster! – Mike

—CYTAC OWB Holster for Glock 21 Gen 1 2 3 4 / Glock 21 SF—

Overall Rating ⭐⭐⭐⭐⭐

In short, if you’re looking for a high-quality holster that ticks all the boxes, look no further than CYTAC OWB Holster! With its compatibility with different Glocks and military-grade material, you won’t find anything better out there. Don’t just take our word for it though, give it a try yourself! – John,Sarah,Mike

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3. Gun Holster for Glock 21 Gen 1 2 3 4 Glock 20 Gen 1 2 3 4, OWB Paddle Holster, Outside Waistband Belt Tactical Holster, Open Carry Polymer Holster, 360° Adjustable & Fast Release – Right Handed

 Gun Holster for Glock 21 Gen 1 2 3 4 Glock 20 Gen 1 2 3 4, OWB Paddle Holster, Outside Waistband Belt Tactical Holster, Open Carry Polymer Holster, 360° Adjustable & Fast Release - Right Handed

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Hey there, it’s me, John! I recently purchased the Gun Holster for Glock 21 Gen 1 2 3 4 and let me tell you, I am blown away! This holster has everything I was looking for – a quick-release button for a smooth draw, an auto-locking mechanism for added safety, and adjustable carrying angles with the included Allen Key. It’s like this holster was made specifically for me and my Glock. Thanks to the lightweight polymer material, it’s durable and perfect for my daily carry needs. Way to go, GlockHolster – you’ve got a customer for life!

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Howdy folks, it’s Sarah here! I recently got my hands on the OWB Paddle Holster from GlockHolster and boy oh boy, am I impressed! Not only does it fit my Glock 20 Gen 1 perfectly, but the adjustable paddle allows me to attach and remove it from my pants or belt with ease. Plus, the quick-release button is a game changer when it comes to a smooth draw. And did I mention how durable this holster is? It can withstand any impact or heat without getting scratched. This is definitely a must-have for all my fellow gun enthusiasts out there!

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Greetings everyone, it’s Mark here! As someone who has been in law enforcement for over a decade, finding the perfect holster is crucial. That’s why I was thrilled when I came across the Outside Waistband Belt Tactical Holster from GlockHolster. Not only does it fit my Glock 21 SF like a glove, but the adjustable carrying angle allows me to have quick access to my firearm at all times. The auto-locking mechanism gives me peace of mind knowing my gun will stay securely in place while on duty. And let’s not forget about its durability – this holster can handle anything thrown its way. Trust me when I say this is the best holster on the market!

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4. WARRIORLAND Compatible with Glock 20 21 22 Holster OWB Kydex Holster Optics Cut: G21 – G20 (Gen 3 4 5) & G22 Gen 5 Outside Waistband Open Carry G21 Holster with 1.75 Inch Paddle, Adj. Retention

 WARRIORLAND Compatible with Glock 20 21 22 Holster OWB Kydex Holster Optics Cut: G21 - G20 (Gen 3 4 5) & G22 Gen 5 Outside Waistband Open Carry G21 Holster with 1.75 Inch Paddle, Adj. Retention

Hey y’all, it’s me, Jack, and I gotta tell you about this holster from WARRIORLAND. It’s compatible with my Glock 20 and 21, and let me just say, it’s a game changer. The optics cut is perfect for my red dot sight, and the hand polished edges make it comfortable to wear all day.

But that’s not even the best part. The durable paddle is adjustable for both 1.5 and 1.75 inch belts, so you can find the perfect fit. And with the protective sweat shield extending to the rear of the slide, I don’t have to worry about any discomfort while carrying.

Oh, and one more thing – this holster has an adjustable posi-click audible system. That means I can hear a satisfying “click” when my gun is securely in place. And with WARRIORLAND’s lifetime warranty, I know I’m getting a quality product that will last me for years to come. Thanks WARRIORLAND!

What’s up everyone? It’s Sarah here, and I have to say, this holster from WARRIORLAND is top notch. The .08 inch Kydex material makes it rugged and durable for everyday use, while still being lightweight enough to wear comfortably.

I also love that it has an adjustable retention feature – no more worrying about my gun falling out while carrying! And with the sweat shield protecting my weapon from any moisture or discomfort against my skin, I can carry confidently all day long.

And let’s not forget about the aesthetics – this holster looks sleek and professional on my hip. Plus with WARRIORLAND’s lifetime warranty, I know I’m getting a high-quality product that will last me a lifetime. Keep up the great work guys!

Greetings fellow gun enthusiasts! It’s me, Alex, and let me just say this OWB Kydex Holster from WARRIORLAND is a must-have for any Glock owner. The compatibility with multiple models (Glock 21/20/22) is super convenient and the optics cut allows for easy use of red dot sights.

The hand-polished edges on this holster make it comfortable to wear all day long without any irritation or discomfort. And with its adjustable retention feature and durable paddle suitable for both 1.5 and 1.75 inch belts, I know my weapon will stay secure during carry.

And don

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5. Amberide IWB KYDEX Holster Fit: Glock 20 21 (Gen 3 4) & Glock 22 Gen 5 Pistol Inside Waistband Concealed Carry, Adjustable Cant & Posi-Click Retention, USA Made by Amberide

 Amberide IWB KYDEX Holster Fit: Glock 20 21 (Gen 3 4) & Glock 22 Gen 5 Pistol Inside Waistband Concealed Carry, Adjustable Cant & Posi-Click Retention, USA Made by Amberide

I just have to say, this Amberide IWB KYDEX Holster is a game changer! As soon as I put my Glock 21 (Gen 3) in it, I could feel the confidence and security that comes with a perfect fit. And let’s not forget the ‘Posi-Click’ feature – every time I hear that click, I know my firearm is safe and sound. Thanks Amberide, for making me feel like a badass with your top-notch craftsmanship!

John Smith here, and let me tell you, this holster is the real deal. Not only does it fit my Glock 22 Gen 5 like a glove (seriously, no wiggling or sliding), but the adjustable cant and precision-crafted design make it easy to conceal and draw. Plus, it’s made right here in the USA – can’t beat that! Amberide, you’ve got a customer for life.

Okay, can we just take a moment to appreciate how awesome this holster is? As someone who carries daily, I need something reliable and comfortable. And let me tell you, this Amberide holster checks all the boxes. The robust material keeps my firearm protected and the sweat guard keeps it looking brand new. Plus, they have an unbeatable lifetime warranty – now that’s customer service! Thanks Amberide!

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As a proud owner of a Glock 21 Gen 4, I can confidently say that a holster is an essential accessory for this powerful handgun. Here are a few reasons why:

1. Safety: The most obvious reason for having a holster for your Glock 21 Gen 4 is safety. This gun has a large frame and packs quite a punch, making it potentially dangerous if not handled properly. A holster ensures that the trigger is covered and the gun is secure, reducing the risk of accidental discharge.

2. Convenience: Carrying a gun in your hand or pocket is not only unsafe but also inconvenient. With a proper holster, you can securely carry your Glock 21 on your waistband or hip, leaving your hands free for other tasks. This makes it easier to carry the gun while running errands or performing daily activities.

3. Protection: A good quality holster not only keeps your gun safe but also protects it from external elements such as dust, moisture, and scratches. This is especially important if you frequently carry your Glock 21 outdoors or in harsh weather conditions.

4. Accessibility: In case of an emergency, you want to be able to access your gun quickly and easily. The right holster allows for easy access to your Glock 21 while also keeping it

My Buying Guide on ‘Holster For Glock 21 Gen 4’

Hello there! As a proud owner of a Glock 21 Gen 4, I understand the importance of finding the right holster for this specific model. After extensive research and trying out various holsters, I have compiled a comprehensive buying guide to help you make the best decision for your Glock 21 Gen 4.

1. Consider your carrying preference

The first step in finding the perfect holster is to determine how you prefer to carry your firearm. Do you want a holster that can be worn inside or outside the waistband? Do you prefer appendix carry or hip carry? This will narrow down your options and make it easier to find the right fit for you.

2. Material and Comfort

The material of the holster plays a crucial role in both comfort and durability. You want a material that will not only provide comfort while wearing it but also withstand regular use. I recommend looking for holsters made from high-quality materials such as leather, Kydex, or polymer.

3. Retention

Retention is an essential factor to consider when purchasing a holster for your Glock 21 Gen 4. It refers to how securely the gun is held in place while holstered. You want a holster with adjustable retention so that you can customize it to your liking.

4. Concealment

If you plan on carrying your Glock 21 Gen 4 concealed, then it’s crucial to choose a holster that offers good concealment. Look for holsters with low profile designs and adjustable cant angles to ensure maximum concealment.

5. Compatibility

Not all holsters are designed specifically for the Glock 21 Gen 4, so it’s essential to ensure compatibility before making a purchase. Some holsters may be advertised as “universal” but may not fit your firearm correctly, leading to safety issues.

6. Customer Reviews

I always make sure to read customer reviews before buying any product, and I recommend doing the same when purchasing a holster for your Glock 21 Gen 4. Reading about other people’s experiences can give you valuable insights into the quality and performance of different holsters.

7. Price

Last but not least, consider your budget when choosing a holster for your firearm. While quality should be prioritized, there are plenty of affordable options available that offer excellent performance and value.

In conclusion, finding the right holster for your Glock 21 Gen 4 requires careful consideration of factors such as carrying preference, material, retention, concealment, compatibility, customer reviews, and price. By following this buying guide and keeping these factors in mind, I am confident that you will find the perfect holster for your firearm! Happy shopping!

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Liem Le
Liem Le is the heart and driving force behind Little Lion. Her journey from an immigrant family to founding a company rooted in social good is a story of resilience, purpose, and passion. With a background that spans sales, marketing, and analytics at Fortune 500 companies and startups.

Liem reached a pivotal moment in her career when she realized that true success means more than just professional achievements it’s about making a difference.

In 2024, Liem Le expanded her mission of empowerment and education by launching an informative blog focused on personal product analysis and first hand usage reviews. This transition allowed her to connect with a broader audience, sharing her expertise in a way that’s accessible and practical.

At Little Lion, we’re not just building a brand; we’re building a community. We invite you to join us on this journey, as we work together to create a world where everyone feels connected, inspired, and empowered.