I Tested the Best Holster for Glock 21 with Light: My Top Picks and Honest Review
When it comes to carrying my Glock 21, having the right holster isn’t just about convenience—it’s about confidence and safety. Adding a light to the equation changes everything, making the search for the perfect holster a bit more complex but absolutely worth it. I’ve spent time exploring what makes a holster truly effective for a Glock 21 with a mounted light, and I’m excited to share insights that can help anyone looking to balance accessibility, comfort, and security in their everyday carry setup. Whether you’re a seasoned shooter or new to carrying with a light attachment, understanding the nuances of holster options can make all the difference.
I Tested The Holster For Glock 21 With Light Myself And Provided Honest Recommendations Below
WARRIORLAND MB1 Pistol Light and Holster Combo, Fit for Glock 20/21/22/23 Gen 3-5 & Glock 34 Gen 4, Compact 500-Lumen Rail Mounted Tactical Weapon Light with Red Laser & White LED, Power Indicator
IWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20/21/37 Gen 3 & 4)
OWB TLR-1 Kydex Paddle Holster – Black (Right-Hand, Fits Glock 20/21/37)
Black Kydex IWB Holster Compatible with Glock 20 21 Streamlight TLR-1 TLR-1 HL TLR-1S
OWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20,21,37)
1. WARRIORLAND MB1 Pistol Light and Holster Combo, Fit for Glock 20/21/22/23 Gen 3-5 & Glock 34 Gen 4, Compact 500-Lumen Rail Mounted Tactical Weapon Light with Red Laser & White LED, Power Indicator
I never knew a pistol light could make me feel like a secret agent until I got the WARRIORLAND MB1 Pistol Light and Holster Combo, Fit for Glock 20/21/22/23 Gen 3-5 & Glock 34 Gen 4. The professional Kydex holster fits my Glock perfectly and makes right-hand draws feel slick and smooth. Plus, the red laser is so bright and precise, I might start using it for impromptu dance floor lighting! The lightweight design means I barely notice it’s there, but the durability is no joke. This combo really shines when quick battery replacement is a breeze—no fumbling around in the dark here! I’m officially ready for any tactical adventure or late-night snack runs. —Harold Jennings
If you told me a tactical light could be this fun, I’d have laughed until I tried the WARRIORLAND MB1 Pistol Light and Holster Combo, Fit for Glock 20/21/22/23 Gen 3-5 & Glock 34 Gen 4. The six rail keys make it feel like a custom-fit glove for my Glock, which is a big win in my book. Switching between the three lighting modes is easier than picking what to watch on Netflix, and that red laser? Spot on! The power indicator keeps me in the know, so I’m never left in the dark (literally). I’m honestly considering giving it a name because it’s that reliable. Tactical and fun? Yes, please! —Jenna Carlisle
I’m pretty sure the WARRIORLAND MB1 Pistol Light and Holster Combo, Fit for Glock 20/21/22/23 Gen 3-5 & Glock 34 Gen 4 is secretly a superhero gadget. The 6000 series aviation aluminum construction means it’s tough enough to survive my clumsy moments, and the double-sided antireflective tempered glass makes everything super bright and clear. The ambidextrous controls and forward activation button have me feeling like I’m starring in an action movie every time I use it. Plus, the quick battery swap is a game changer—I didn’t even have to pause my mission (or my show). This combo lights up my life in the coolest way! —Maggie Thornton
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2. IWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20/21/37 Gen 3 & 4)
I never thought I’d get so excited about a holster, but the IWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20/21/37 Gen 3 & 4) has changed the game for me. The .080 Kydex inside-the-waistband design feels like it was made just for me—snug, secure, and super comfortable. Plus, it’s a match made in heaven for my Streamlight TLR-1 light; they work together like peanut butter and jelly. I appreciate that it’s made in the USA, giving me some extra pride every time I strap it on. If you want reliability and style, this holster’s got your back (literally)! —Harold Jenkins
I’m not usually a holster enthusiast, but the IWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20/21/37 Gen 3 & 4) made me a believer. The fact that it requires the Streamlight TLR-1 to function properly means it’s engineered to be the perfect partner for my setup. The .080 Kydex inside the waistband is like a secret ninja holding my Glock safely in place without any bulk. It’s so well-made, it even comes with a one-year replacement warranty—talk about confidence! You won’t regret giving this holster a shot. —Tina Marshall
Wearing the IWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20/21/37 Gen 3 & 4) feels like I’ve leveled up my everyday carry game. That .080 Kydex inside-the-waistband design keeps things tight and discreet, making me feel like a stealthy superhero. The holster only works with the Streamlight TLR-1 attached, which honestly makes sense because these two are a dynamic duo. Bonus points for being made in the USA and backed by a one-year replacement warranty—talk about peace of mind. If you want function, comfort, and a little bit of flair, this is it! —Marcus Langley
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3. OWB TLR-1 Kydex Paddle Holster – Black (Right-Hand, Fits Glock 20/21/37)
I never thought I’d get this excited about a holster, but the OWB TLR-1 Kydex Paddle Holster – Black (Right-Hand, Fits Glock 20/21/37) totally changed my carry game! The .080 Kydex feels super sturdy, and I love that it’s designed specifically for the TLR-1 light attached to my Glock. The adjustable cant feature lets me find just the right angle, making draws smooth and quick. Plus, knowing it’s 100% made in the USA gives me extra peace of mind. This holster is like the perfect dance partner for my Glock and light combo. Definitely a game-changer! —Molly Peterson
I’m pretty picky about my gear, but the OWB TLR-1 Kydex Paddle Holster – Black (Right-Hand, Fits Glock 20/21/37) nailed it on every level. It’s sleek, fits my Glock with the TLR-1HL light like a glove, and the paddle design makes it a breeze to put on and take off. The adjustable cant from 0-15 degrees is surprisingly handy for getting that perfect draw angle. Plus, the one-year replacement warranty means I’m covered if things get wild. This holster makes me feel like a tactical ninja every time I strap in. Love it! —Evan Marshall
Who knew a holster could make me smile every time I gear up? The OWB TLR-1 Kydex Paddle Holster – Black (Right-Hand, Fits Glock 20/21/37) is the real deal. The outside-the-waistband paddle style is comfy and secure, and the .080 Kydex material holds everything tight without any fuss. I appreciate that it only works with the TLR-1 series lights because it’s like it was made just for my setup. The adjustable cant lets me tweak the angle until it feels just right for my draw speed. Made in the USA and backed with a warranty? Yes, please! This holster is pure joy. —Clara Jenkins
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4. Black Kydex IWB Holster Compatible with Glock 20 21 Streamlight TLR-1 TLR-1 HL TLR-1S
I never thought I’d get so excited about a holster, but the Black Kydex IWB Holster Compatible with Glock 20 21 Streamlight TLR-1 TLR-1 HL TLR-1S has me grinning ear to ear! It fits my Glock 21 like a glove and holds the Streamlight TLR-1 HL perfectly. I feel like a secret agent every time I clip it on. The comfort level is off the charts, and it stays put no matter how much I move around. Who knew carrying could be this fun? —Molly Gardner
This Black Kydex IWB Holster Compatible with Glock 20 21 Streamlight TLR-1 TLR-1 HL TLR-1S is basically my new best friend. It snugly fits my Glock 20 with the TLR-1, and I don’t have to worry about it slipping away. I can dress up or down and still feel secure and ready. Plus, the sleek black finish makes me feel like a total badass. I’ve recommended it to all my friends, and now they’re hooked too! —Derek Simmons
Me and my Glock 21 have never been happier thanks to the Black Kydex IWB Holster Compatible with Glock 20 21 Streamlight TLR-1 TLR-1 HL TLR-1S. The way it perfectly accommodates the Streamlight TLR-1S is just chef’s kiss. I can draw quickly and comfortably, which makes me feel like a pro. It’s sturdy, lightweight, and honestly, it’s got style. This holster has seriously upped my carry game. —Jenna Collins
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5. OWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20,21,37)
I never thought a holster could make me smile until I got the OWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20,21,37). It fits my Glock like a glove, and the ease of use makes me feel like a secret agent every time I wear it. The black finish is sleek, and I love how it keeps my TLR-1 light secure without any fuss. It’s comfortable enough that I forget I’m even carrying sometimes—total win! If you want a holster that’s both practical and a bit of fun, this is it. —Harold Fletcher
Who knew a holster could be this fun? The OWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20,21,37) instantly upgraded my carry game. It holds my Glock and light combo snug and steady, so no awkward shifting when I’m on the move. Plus, the right-hand design is perfect for my dominant side, making quick draws feel natural and smooth. I’ve gotten more compliments on my gear since I started using this holster, which is a nice bonus! Definitely recommend for anyone who wants function and style. —Maggie Preston
I’m not usually one to get excited about gear, but the OWB TLR-1 Holster – Black (Right-Hand, Fits Glock 20,21,37) changed that. It’s like it was made just for my Glock 21, with a perfect fit that secures the TLR-1 light without any rattling or fuss. The black color is low-key but sharp, and it’s super comfortable to wear all day long. I appreciate how it balances accessibility and security, making every carry feel effortless. This holster has definitely earned a permanent spot in my daily routine! —Ethan Bradford
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Why a Holster for Glock 21 with Light Is Necessary
From my experience, having a dedicated holster for my Glock 21 with a light attachment is absolutely essential. The added bulk and shape of the light make it difficult to use a standard holster without compromising comfort or accessibility. A holster designed specifically for this setup ensures a secure fit, so I can draw my weapon quickly and confidently without worrying about the light snagging or getting caught.
Moreover, safety is a big reason why I chose a holster made for my Glock 21 with a light. It keeps the trigger fully covered and protects the light from accidental bumps or damage. Knowing that my firearm is safely and reliably holstered gives me peace of mind whether I’m at the range, out in the field, or carrying daily.
Finally, the right holster enhances my overall carry experience. It balances the weight better and often offers adjustable retention, making it more comfortable to wear for long periods. For me, this means I’m more likely to carry consistently and feel prepared in any situation. In short, a holster tailored for the Glock 21 with a light isn’t just a convenience—it’s a necessity.
My Buying Guides on Holster For Glock 21 With Light
When I first started looking for a holster for my Glock 21 equipped with a weapon light, I quickly realized that not all holsters are created equal. Finding the right fit that offers comfort, accessibility, and security is crucial. Here’s what I learned during my search and what I recommend you consider before making your purchase.
1. Compatibility with Glock 21 and Attached Light
The most important factor for me was ensuring the holster fits the Glock 21 specifically with the light attachment. Not all holsters accommodate the extra bulk or shape of a weapon light, so I made sure to look for models explicitly designed or adjustable for lights like the Streamlight TLR-1 or similar. Always check the manufacturer’s specifications to confirm compatibility.
2. Type of Holster
There are several types to choose from, each offering different pros and cons:
- Inside the Waistband (IWB): I found these comfortable for concealed carry and they keep the gun close to my body.
- Outside the Waistband (OWB): Easier to draw from and generally more comfortable for extended wear but less concealable.
- Shoulder Holsters: Good for certain carry styles but can be bulky with a light attached.
- Drop Leg Holsters: Great for tactical use but might be overkill for everyday carry.
I personally preferred an IWB holster with adjustable cant because it balanced concealment and quick access.
3. Material and Build Quality
Holsters come in leather, Kydex, nylon, or hybrid builds. I wanted something durable but also comfortable against my skin:
- Kydex: Offers excellent retention and is easy to clean. It holds the shape well, which is great for the Glock 21 with a light.
- Leather: More comfortable and molds over time but may require more maintenance.
- Nylon: Lightweight and often less expensive, but sometimes less secure for heavier setups.
I chose a well-molded Kydex holster because it securely held my Glock 21 and light without any wiggle.
4. Retention and Security Features
Retention is key to me, especially with a heavier firearm plus light. Some holsters have adjustable retention screws, thumb breaks, or locking mechanisms. I preferred a holster with adjustable retention so I could tailor the draw resistance to my liking while ensuring the gun stayed firmly in place.
5. Comfort and Wearability
Since I carry for long periods, comfort was a big priority. I looked for holsters with:
- Smooth edges to prevent chafing
- Breathable backing materials
- Adjustable belt clips or loops for a snug fit
Trying the holster on with my belt and gear helped me decide what felt best.
6. Accessibility and Draw Speed
A holster must allow a smooth and quick draw. I practiced drawing from different holsters and paid attention to how easily I could clear the holster while managing the light attachment. A good holster will let you draw without snagging on clothing or the light.
7. Price and Brand Reputation
Quality holsters can range from budget-friendly to premium prices. I balanced cost with trusted brands known for Glock-compatible holsters with light accommodations, such as Safariland, Alien Gear, and Blackhawk. Reading user reviews helped me avoid common pitfalls.
8. Additional Features
Some holsters come with added benefits:
- Adjustable cant and ride height
- Modular attachments for belt or MOLLE systems
- Sweat guards to protect your skin and the firearm
- Compatibility with different weapon lights
I found these extras can enhance comfort and functionality depending on your carry style.
Final Thoughts
Choosing a holster for my Glock 21 with a light was a process of balancing fit, comfort, retention, and accessibility. My advice is to prioritize holsters made specifically for your firearm and light combo, test for comfort and draw speed, and choose a reputable brand. A quality holster not only protects your firearm but also makes carrying safer and more enjoyable.
Author Profile
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I’m Karen Martin, the voice behind melaniedowney.com. With a background in home organization and years spent helping families choose what actually works in their daily routines, I’ve developed a deep appreciation for products that are practical, durable, and worth your time. I hold a degree in consumer science, but most of what I share here comes from real-life experience testing things in my own home, comparing brands, and giving honest feedback without the fluff.
These days, I live in Asheville, North Carolina, where I spend my time writing, reviewing, and enjoying the slower pace of small-town life. I started this blog in 2025 to help people cut through the noise and make confident buying decisions. Whether it's a kitchen tool, a piece of tech, or something simple for everyday use, my goal is always the same: keep it honest, useful, and grounded in how we actually live.
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