Choosing the right tactical light for your Glock 21 can be a game-changer in both defensive and operational scenarios. In this article, I will walk you through some of the best tactical lights on the market, their specifications, standout features, pros and cons, user experiences, and why they are particularly suited for the Glock 21. I'll also share online customer comments to give you a well-rounded view of each product.

Top 7 Best Lights For Glock 21 on the Market

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Streamlight TLR-1 HL⁠

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SureFire X300 Ultra⁠

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Olight PL-Mini 2 Valkyrie⁠

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Inforce WILD1⁠

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Crimson Trace CMR-208⁠

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Nightstick TWM-850XL⁠

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OLIGHT Baldr Pro R⁠

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Note: The following advice comes from my personal perspective. What works for me might not work for you, but hopefully it sparks some ideas!

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1. Streamlight TLR-1 HL

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Specifications:

Lumens: 1000

Runtime: 1.5 hours

Beam Distance: 283 meters

Water Resistance: IPX7

Battery Type: 2 CR123A lithium batteries

Weight: 4.18 oz

Best Features:

High lumens for a blinding output.

Durable and waterproof design.

Easy-to-use ambidextrous switch.

Pros:

Exceptionally bright with a 1000-lumen output.

Robust and waterproof, suitable for various conditions.

Reliable and durable with a solid build quality.

User-friendly interface with easy attachment and detachment.

Cons:

Slightly heavier than some competitors.

Battery life could be better with such a high output.

User Experience:

Using the Streamlight TLR-1 HL on my Glock 21 has been an excellent experience. The brightness is exceptional, making it perfect for both indoor and outdoor use. The strobe feature adds an extra layer of functionality, particularly in tactical situations.

Why It Fits the Glock 21:

The Glock 21, known for its reliability and power, deserves an equally reliable and powerful light. The Streamlight TLR-1 HL complements the Glock 21's robust nature, offering high lumens and durability.

Online Customer Comments:

Many users praise the TLR-1 HL for its brightness and solid build. Some have noted the ease of installation and the impressive beam distance. However, a few mention the weight as a minor drawback.

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2. SureFire X300 Ultra

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Specifications:

Lumens: 1000

Runtime: 1.25 hours

Beam Distance: 213 meters

Water Resistance: IPX7

Battery Type: 2 CR123A batteries

Weight: 4 oz

Best Features:

Tactical-level light output.

TIR lens for a focused beam.

Ambidextrous switch for easy operation.

Pros:

High-intensity output with excellent beam focus.

Durable and reliable in harsh conditions.

Easy to mount and remove.

Cons:

Relatively high price point.

Battery life could be improved.

User Experience:

The SureFire X300 Ultra provides a blinding 1000 lumens of output, perfect for tactical use. The build quality is exceptional, and it fits snugly on the Glock 21, ensuring it stays secure even during rigorous use.

Why It Fits the Glock 21:

Given the Glock 21's powerful performance, the SureFire X300 Ultra's high output and durability make it a perfect match. Its robust construction ensures it can handle the Glock 21's recoil without any issues.

Online Customer Comments:

Customers appreciate the X300 Ultra's brightness and build quality. The secure fit and ease of use are frequently mentioned, although some find the price a bit steep.

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3. Olight PL-Mini 2 Valkyrie

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Specifications:

Lumens: 600

Runtime: 1 hour

Beam Distance: 100 meters

Water Resistance: IPX6

Battery Type: Rechargeable

Weight: 2.57 oz

Best Features:

Compact and lightweight design.

Adjustable rail for a perfect fit.

Rechargeable battery with magnetic charging.

Pros:

Compact size makes it ideal for concealed carry.

Easy to recharge with the magnetic charging system.

Adjustable rail ensures a snug fit on various firearms.

Cons:

Lower lumen output compared to larger models.

Shorter runtime due to the smaller battery.

User Experience:

The Olight PL-Mini 2 Valkyrie is incredibly compact and easy to use. Its adjustable rail made it fit perfectly on my Glock 21, and the magnetic charging system is very convenient.

Why It Fits the Glock 21:

Despite its smaller size, the Olight PL-Mini 2 Valkyrie offers adequate brightness and a secure fit, making it an excellent choice for those looking for a compact tactical light for their Glock 21.

Online Customer Comments:

Users love the compact size and the magnetic charging feature. The adjustable rail is a big hit, but some wish for a longer runtime.

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4. Inforce WILD1

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Specifications:

Lumens: 200

Runtime: 1.5 hours

Beam Distance: 89 meters

Water Resistance: IPX7

Battery Type: 1 CR123A battery

Weight: 2.43 oz

Best Features:

Ultra-lightweight design.

High efficiency LED emitter.

Easy-to-use ambidextrous activation.

Pros:

Lightweight and compact.

Simple to operate with intuitive controls.

Durable with a water-resistant design.

Cons:

Lower lumen output compared to other models.

Limited beam distance.

User Experience:

The Inforce APLc is a very lightweight and easy-to-use tactical light. It fits well on the Glock 21 and offers sufficient brightness for most situations, although it lacks the high output of some competitors.

Why It Fits the Glock 21:

Its lightweight design ensures it doesn’t add much bulk to the Glock 21, making it a good choice for those who prefer a lighter setup. The ease of use and solid build quality are additional benefits.

Online Customer Comments:

Many users appreciate the lightweight design and intuitive controls. However, some feel that the lower lumen output may not be adequate for all scenarios.

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5. Crimson Trace CMR-208

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Specifications:

Lumens: 420

Runtime: 1 hour

Beam Distance: 110 meters

Water Resistance: IPX4

Battery Type: 1 CR123A battery

Weight: 4.1 oz

Best Features:

Universal fit for various firearms.

High-output LED.

Multiple modes including strobe.

Pros:

Versatile fit for different guns.

Bright and reliable output.

Multiple modes add versatility.

Cons:

Heavier than some competitors.

Shorter runtime due to high output.

User Experience:

The Crimson Trace CMR-208 provides a bright and reliable light source. Its universal fit made it easy to mount on my Glock 21, and the different modes, including strobe, were particularly useful in various situations.

Why It Fits the Glock 21:

The versatility and brightness of the Crimson Trace CMR-208 make it an excellent match for the Glock 21. Its robust build ensures it can withstand the recoil and stress of regular use.

Online Customer Comments:

Users praise the brightness and the versatile fit. The strobe mode is a favorite among many, though some find it a bit heavy.

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6. Nightstick TWM-850XL

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Specifications:

Lumens: 850

Runtime: 1.75 hours

Beam Distance: 245 meters

Water Resistance: IPX7

Battery Type: 2 CR123A batteries

Weight: 5.4 oz

Best Features:

High output and long beam distance.

Robust and durable construction.

Easy-to-use switch with strobe function.

Pros:

Bright with a long-reaching beam.

Durable and reliable in various conditions.

Long runtime compared to similar lights.

Cons:

Heavier than many other tactical lights.

Bulky, which may not suit all users.

User Experience:

The Nightstick TWM-850XL offers an impressive beam distance and brightness. It fits securely on the Glock 21, though its bulkier design might not be for everyone. The long runtime is a definite plus.

Why It Fits the Glock 21:

The high output and robust construction make it a suitable match for the Glock 21. It handles recoil well and provides a bright, far-reaching beam.

Online Customer Comments:

Customers often highlight the brightness and beam distance. The build quality is also frequently mentioned positively, but the weight and size are noted as potential drawbacks.

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7. OLIGHT Baldr Pro R

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Specifications:

Lumens: 1350

Runtime: 1.5 hours

Beam Distance: 260 meters

Water Resistance: IPX4

Battery Type: Rechargeable

Weight: 4.55 oz

Best Features:

Extremely high lumen output.

Integrated green laser for added accuracy.

Rechargeable battery.

Pros:

Very bright with excellent beam distance.

Built-in green laser adds precision.

Rechargeable, saving on battery costs.

Cons:

Higher price point.

Larger and heavier design.

User Experience:

The Baldr Pro R offers incredible brightness and an integrated green laser, enhancing accuracy. It's a bit larger and heavier, but the additional features make it worth the extra weight. The rechargeable battery is convenient and helps save on costs in the long run.

Why It Fits the Glock 21:

The high lumen output and integrated laser make it a powerful addition to the Glock 21. Its robust design ensures it can handle the recoil and provides excellent illumination and accuracy.

Online Customer Comments:

Users love the brightness and the integrated laser. Many appreciate the rechargeable battery, though some mention the size and weight as minor drawbacks.

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How to Choose the Best Light for the Glock 21

When selecting a tactical light for your Glock 21, several factors should be considered to ensure you get the best performance and reliability.

Brightness and Beam Distance

The primary purpose of a tactical light is to provide adequate illumination. Look for lights with at least 400 lumens to ensure sufficient brightness. Beam distance is also crucial, especially for outdoor use, so consider a light that offers a long reach.

Durability and Build Quality

Your tactical light should withstand the rigors of use, including the recoil from the Glock 21. Opt for lights made from high-quality materials like aluminum or reinforced polymer and check for water and shock resistance ratings.

Battery Life

Consider the runtime of the tactical light. A longer battery life is preferable, but also consider whether the light uses disposable or rechargeable batteries. Rechargeable batteries can be more convenient and cost-effective in the long run.

Size and Weight

The size and weight of the tactical light can affect the handling of your Glock 21. Ensure the light is not too bulky or heavy, as this can impact maneuverability and ease of use.

Ease of Use

Look for lights with intuitive controls, such as ambidextrous switches or easy-to-activate buttons. This is particularly important in high-stress situations where you need to activate the light quickly and efficiently.

Additional Features

Some tactical lights come with additional features like strobe modes or integrated lasers. Consider what extra functionality you might need and choose accordingly.

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FAQs

Q: What is the best lumen output for a tactical light on a Glock 21?

A: A lumen output of at least 400 is recommended for adequate brightness. However, for tactical use, 800-1000 lumens or higher is preferable for maximum visibility.

Q: Can I use a rechargeable battery with my tactical light?

A: Yes, many modern tactical lights come with rechargeable batteries, which can be more convenient and cost-effective than disposable ones.

Q: Is a strobe feature necessary on a tactical light?

A: While not essential, a strobe feature can be useful for disorienting an attacker or signaling in an emergency.

Q: How do I mount a tactical light on my Glock 21?

A: Most tactical lights are designed to be mounted on the rail of the Glock 21. Follow the manufacturer's instructions for secure attachment.

Q: Do I need a laser integrated with my tactical light?

A: An integrated laser can enhance accuracy, particularly in low-light conditions. It's a personal preference based on your specific needs.

Q: How does water resistance affect a tactical light?

A: Water resistance ensures that your tactical light will function in wet conditions, which is important for reliability in all environments.

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Conclusion

Choosing the best tactical light for your Glock 21 involves considering factors such as brightness, durability, battery life, and ease of use. From my experience, the Streamlight TLR-1 HL and SureFire X300 Ultra stand out for their high output and robust build, making them excellent choices. The Olight PL-Mini 2 Valkyrie and Inforce APLc offer more compact options, while the Crimson Trace CMR-208 and Nightstick TWM-850XL provide versatile and reliable performance. The Baldr Pro R, with its high lumen output and integrated laser, offers additional functionality for those who need it.

Ultimately, the right tactical light enhances the functionality of your Glock 21, providing the illumination and reliability needed in various scenarios. Choose a light that fits your specific requirements, and you'll be well-prepared for any situation.

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