The Glock 40 is a formidable firearm, known for its power and precision. However, to maximize its potential, equipping it with the right laser sight can significantly enhance accuracy and targeting speed.

In this article, I'll review some of the best laser sights available for the Glock 40, diving into their specifications, best features, pros, cons, and user experiences. Afterward, I’ll provide a guide on how to choose the best laser sight for your Glock 40, followed by a FAQ section.

Top 6 Best Laser Sights for Glock 40 on the Market

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SureFire X400U-A⁠

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Streamlight TLR-2 HL G⁠

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Crimson Trace CMR-204⁠

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Viridian X5L Gen 3⁠

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OLIGHT Baldr Pro R⁠

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HOLOSUN LS321G⁠

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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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SureFire X400U-A - Laser Light Combo

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Specifications:

Laser Type: Red

Lumens: 1000

Battery: 2 x CR123A

Material: Aerospace Aluminum

Water Resistance: IPX4

Best Features:

Integrated laser and light combo

High lumen output for visibility

Durable construction

Pros:

Extremely bright light

Robust and durable

Simple activation switch

Cons:

Higher price point

Bulkier than some other options

Experience: The SureFire X400U-A offers a fantastic blend of powerful illumination and precise laser targeting. The red laser is clearly visible, even in bright conditions, and the 1000-lumen flashlight provides exceptional situational awareness. The construction feels incredibly sturdy, making it an excellent choice for those who need reliability in high-pressure scenarios.

User Comments:

"The best tactical light and laser combo I've used on my Glock 40. The light is incredibly bright, and the laser holds zero perfectly."

"It's a bit pricey, but the durability and performance are worth every penny."

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Streamlight TLR-2 HL G - Laser Light Combo

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Specifications:

Laser Type: Green

Lumens: 1000

Battery: 2 x CR123A

Material: Aircraft Aluminum

Water Resistance: IPX7

Best Features:

High-visibility green laser

High lumen output

Ambidextrous switch

Pros:

Green laser is highly visible

Waterproof and durable

Easy to operate

Cons:

Can be bulky

Consumes battery quickly

Experience: The Streamlight TLR-2 HL G stands out with its high-visibility green laser, which is easier to see in various lighting conditions compared to red lasers. The 1000-lumen flashlight is incredibly powerful, making it an excellent choice for both home defense and tactical applications. The ambidextrous switch design adds to the ease of use.

User Comments:

"The green laser is super bright and easy to pick up. The flashlight is also incredibly powerful."

"It's a bit bulky on my Glock 40, but the performance makes up for it."

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Crimson Trace CMR-204 - Laser Light Combo

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Specifications:

Laser Type: Green

Lumens: 100

Battery: 1 x CR2

Material: Polymer

Water Resistance: Weather-resistant

Best Features:

Compact design

High-visibility green laser

Instant Activation™

Pros:

Compact and lightweight

Green laser is very bright

Easy installation

Cons:

Lower lumen output

Limited battery life

Experience: The Crimson Trace CMR-204 is perfect for those looking for a compact and lightweight laser sight. Despite its small size, the green laser is highly visible and easy to use. The Instant Activation™ feature is a standout, allowing for quick targeting. However, the flashlight’s lower lumen output might be a drawback in complete darkness.

User Comments:

"Fits perfectly on my Glock 40 without adding much bulk. The green laser is excellent."

"The light isn't as bright as I hoped, but the laser is spot-on."

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Viridian X5L Gen 3 - Laser Light Combo

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Specifications:

Laser Type: Green

Lumens: 500

Battery: Rechargeable Lithium

Material: Polymer and Aluminum

Water Resistance: IPX4

Best Features:

Green laser with various modes

Rechargeable battery

Instant-On™ activation

Pros:

Various laser modes

Rechargeable battery

Green laser is bright and clear

Cons:

Moderate lumen output

Can be complex to operate

Experience: The Viridian X5L Gen 3 offers versatility with multiple laser modes and a rechargeable battery, making it convenient and eco-friendly. The green laser is exceptionally bright, and the Instant-On™ activation feature ensures you’re always ready. However, the flashlight’s 500 lumens are less powerful compared to some competitors.

User Comments:

"Love the rechargeable feature and the various laser modes. Fits well on my Glock 40."

"Takes a bit to get used to all the functions, but once you do, it's a fantastic accessory."

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OLIGHT Baldr Pro R - Laser Light Combo

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Specifications:

Laser Type: Green

Lumens: 1350

Battery: Built-in Rechargeable

Material: Aluminum Alloy

Water Resistance: IPX4

Best Features:

Extremely bright flashlight

Integrated green laser

Magnetic USB charging

Pros:

Very high lumen output

Easy to recharge

Green laser is very bright

Cons:

Heavier due to built-in battery

Higher price point

Experience: The OLIGHT Baldr Pro R is a powerhouse with a 1350-lumen flashlight and a green laser, offering unparalleled brightness and visibility. The magnetic USB charging is convenient, eliminating the need for battery replacements. Although it’s slightly heavier due to the built-in battery, the performance justifies the added weight.

User Comments:

"The brightest light I've ever used on a handgun. The green laser is excellent, and recharging is a breeze."

"A bit on the heavier side, but it's incredibly well-built and reliable."

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