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Top 5 Best Laser Sights for FN 5.7 Mk3 of 2024

The FN 5.7 Mk3 is a renowned handgun known for its accuracy, high-capacity magazine, and low recoil. However, to enhance its performance further, adding a laser sight can be incredibly beneficial. A laser sight helps in quick target acquisition and improves shooting accuracy, especially in low-light conditions. After extensive research and personal experience, I have compiled a list of the best laser sights for the FN 5.7 Mk3. This article will delve into detailed reviews of the top five products from the comprehensive list provided, helping you make an informed decision.

Top 5 Best Laser Sights for FN 5.7 Mk3 on the Market

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

1. SureFire X400U-A - Laser Light Combo

SureFire X400U-A.png
Specifications:
Weight: 4.0 oz (113.4 g)
Battery: 2 CR123A (included)
Laser Color: Red
Output: 1,000 lumens (white light), 5mW (laser)
Material: Aerospace aluminum
Best Features:
The SureFire X400U-A stands out due to its high-output white light combined with a red laser. It delivers an impressive 1,000 lumens of bright, focused light, making it ideal for both tactical situations and home defense. The laser sight is precise and maintains its zero even after extensive firing.
Pros:
High-lumen output for better visibility
Durable construction with aerospace aluminum
Easy to activate with ambidextrous switches
Reliable laser performance
Cons:
Heavier than other models
Higher price point
Experience When Using the Product:
Using the SureFire X400U-A on my FN 5.7 Mk3 was a game-changer. The bright white light illuminated targets clearly, and the red laser provided quick and accurate aiming. The rugged build ensured it stayed functional even after rough handling. This combination of light and laser is perfect for any defensive scenario.
Why This Fits the FN 5.7 Mk3:
The FN 5.7 Mk3 benefits from the X400U-A’s robust build and reliability. The powerful illumination and precise laser enhance the gun's natural accuracy, making it a versatile tool for various situations.
Customer Comments:
"The SureFire X400U-A is worth every penny. The light is incredibly bright, and the laser stays accurate after hundreds of rounds."
"A bit heavy but solid performance. It’s built like a tank and performs flawlessly."

2. Streamlight TLR-2 HL G - Laser Light Combo

Streamlight TLR-2 HL G.png
Specifications:
Weight: 4.78 oz (135.6 g)
Battery: 2 CR123A (included)
Laser Color: Green
Output: 800 lumens (white light), 5mW (laser)
Material: Anodized aluminum
Best Features:
The Streamlight TLR-2 HL G offers a bright 800-lumen light and a highly visible green laser, which is more visible in daylight than red lasers. Its quick-detach rail clamp design ensures it can be mounted or detached rapidly without tools.
Pros:
Highly visible green laser
Strong lumen output
Quick-detach rail clamp
Durable and lightweight design
Cons:
Green laser can drain the battery faster
Slightly bulky for some users
Experience When Using the Product:
Mounting the Streamlight TLR-2 HL G on the FN 5.7 Mk3 was straightforward, thanks to its quick-detach design. The green laser was visible even during daytime shooting, and the light provided excellent illumination in low-light environments. The overall performance was exceptional, making target acquisition faster and more accurate.
Why This Fits the FN 5.7 Mk3:
The TLR-2 HL G enhances the FN 5.7 Mk3 by providing a bright green laser that stands out in various lighting conditions. Its robust and lightweight design complements the pistol’s characteristics, making it ideal for tactical use.
Customer Comments:
"The green laser is incredibly bright and easy to see, even in daylight. The light is also very powerful."
"Quick and easy to attach or detach. A must-have for any serious shooter."

3. Crimson Trace CMR-204 - Laser Light Combo

Crimson Trace CMR-204.png
Specifications:
Weight: 2.25 oz (63.8 g)
Battery: 1 CR2 (included)
Laser Color: Green
Output: 5mW (laser)
Material: Polymer and aluminum
Best Features:
The Crimson Trace CMR-204 is a compact and lightweight option featuring a green laser that is visible in both daylight and low-light conditions. The unit has instant activation via a pressure pad, allowing for immediate laser engagement.
Pros:
Lightweight and compact design
Highly visible green laser
Easy activation with pressure pad
Fits a wide range of firearms
Cons:
Laser-only with no light option
Battery life could be better
Experience When Using the Product:
The Crimson Trace CMR-204 was a breeze to install on the FN 5.7 Mk3. The green laser was highly visible, and the activation pressure pad allowed for immediate engagement. Its lightweight design did not affect the gun’s balance, making it an excellent addition for quick target acquisition.
Why This Fits the FN 5.7 Mk3:
The CMR-204's compact and lightweight build pairs perfectly with the FN 5.7 Mk3, ensuring it remains easy to handle. The bright green laser improves shooting accuracy significantly, especially in high-stress situations.
Customer Comments:
"Great laser sight for its size. The green laser is clear and easy to see in various lighting."
"The activation is intuitive and fast, which is crucial in a self-defense scenario."

4. OLIGHT Baldr Pro R - Laser Light Combo

OLIGHT Baldr Pro R.png
Specifications:
Weight: 4.55 oz (129 g)
Battery: Built-in rechargeable
Laser Color: Green
Output: 1,350 lumens (white light), 5mW (laser)
Material: Aluminum alloy
Best Features:
The OLIGHT Baldr Pro R features an impressive 1,350 lumens of white light along with a green laser. It has a built-in rechargeable battery, eliminating the need for disposable batteries. The light and laser can be used independently or together.
Pros:
High lumen output
Rechargeable battery
Green laser for visibility in all lighting conditions
Durable and robust design
Cons:
Slightly bulky
More expensive than some alternatives
Experience When Using the Product:
The OLIGHT Baldr Pro R was a fantastic addition to my FN 5.7 Mk3. The light was incredibly bright, and the green laser was precise and easy to see. The rechargeable battery was a convenient feature, reducing the hassle of changing batteries frequently. The overall build quality was excellent, providing a solid and reliable performance.
Why This Fits the FN 5.7 Mk3:
The Baldr Pro R's combination of high lumen output and green laser sight makes it a perfect match for the FN 5.7 Mk3, enhancing its performance in both day and night conditions. The rechargeable feature is an added bonus, ensuring it’s always ready for use.
Customer Comments:
"The brightness of the light and the clarity of the green laser are unbeatable. Worth every penny."
"Love the rechargeable feature. It saves money on batteries in the long run."

5. Viridian X5L Gen 3 - Laser Light Combo

Viridian X5L Gen 3.png
Specifications:
Weight: 2.81 oz (79.7 g)
Battery: 1 CR2 (included)
Laser Color: Green
Output: 500 lumens (white light), 5mW (laser)
Material: Polymer and aluminum
Best Features:
The Viridian X5L Gen 3 combines a 500-lumen light with a green laser. It features Instant-On technology, which activates the laser upon drawing the gun from a holster. The design is sleek and fits well with the FN 5.7 Mk3.
Pros:
Instant-On activation
Highly visible green laser
Compact and lightweight design
Durable construction
Cons:
Lower lumen output compared to other models
Limited battery life
Experience When Using the Product:
Using the Viridian X5L Gen 3 was a smooth experience. The Instant-On feature was particularly useful, ensuring the laser was ready as soon as the gun was drawn. The green laser was bright and effective, and the light, while not the brightest, provided sufficient illumination for most scenarios.
Why This Fits the FN 5.7 Mk3:
The X5L Gen 3’s Instant-On feature and compact design complement the FN 5.7 Mk3 perfectly. It provides a quick and reliable aiming solution without adding significant weight or bulk to the gun.
Customer Comments:
"The Instant-On feature is a game-changer. No fumbling with switches."
"Perfect fit for my FN 5.7 Mk3. The laser is bright and holds zero well."

Laser Light Combo for FN 5.7 Mk3

Combining both laser and light in one unit is beneficial for the FN 5.7 Mk3 as it maximizes the utility of the firearm. The SureFire X400U-A, OLIGHT Baldr Pro R, and Viridian X5L Gen 3 are excellent examples of laser light combos that enhance the pistol's performance. These combinations ensure that you are prepared for both target acquisition and illumination needs in any situation.

How to Choose the Best Laser Sight for FN 5.7 Mk3

Laser Color: Green lasers are generally more visible in various lighting conditions compared to red lasers.
Lumens: Higher lumen output ensures better visibility in low-light conditions.
Battery Life: Consider models with long battery life or rechargeable options.
Weight and Size: Ensure the laser sight does not add significant bulk or weight to the firearm.
Durability: Look for robust construction that can withstand recoil and rough handling.
Ease of Installation: Quick-detach features and easy mounting are advantageous.

FAQs

1. Why should I add a laser sight to my FN 5.7 Mk3?
Adding a laser sight enhances accuracy, particularly in low-light conditions or high-stress situations. It also allows for quicker target acquisition.
2. Are green lasers better than red lasers?
Green lasers are more visible in a variety of lighting conditions, including daylight, making them generally preferable over red lasers.
3. How does a laser light combo benefit my FN 5.7 Mk3?
A laser light combo provides both illumination and aiming assistance, making your firearm more versatile and effective in different scenarios.
4. Can I install the laser sight myself?
Yes, most laser sights are designed for easy installation. Quick-detach designs and straightforward mounting systems make it possible to install them without professional help.
5. Do laser sights affect the balance of the gun?
While some laser sights can add weight, choosing a compact and lightweight model ensures minimal impact on the gun’s balance.
6. How do I maintain my laser sight?
Regular cleaning, checking battery levels, and ensuring the sight is securely mounted are key maintenance steps.

Conclusion

Choosing the best laser sight for your FN 5.7 Mk3 can significantly enhance your shooting accuracy and confidence. The SureFire X400U-A, Streamlight TLR-2 HL G, Crimson Trace CMR-204, OLIGHT Baldr Pro R, and Viridian X5L Gen 3 are all excellent options, each with unique features and benefits. Whether you prefer a high-lumen output, a green laser for visibility, or a compact design, there’s a laser sight in this list that will meet your needs. Remember to consider factors like laser color, battery life, and ease of installation when making your choice. With the right laser sight, your FN 5.7 Mk3 will be an even more formidable tool in your arsenal.
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