5 Best Red Dot Sights for Your FN Five-seveN MRD Pistol

Chris G.

As an experienced shooter and proud owner of the FN Five seveN MRD pistol, finding the perfect red dot sight to improve my shooting skills is essential.

These sights allow me to track and aim at targets with exceptional accuracy and precision, enhancing my overall performance in the range or in the field.

In this article, I will discuss the top contenders for the best red dot sights for the FN Five seveN MRD pistol. These popular options include the Trijicon SRO and RMR Type 2, Leupold DeltaPoint Pro, and HOLOSUN HE508T X2 and HS507C X2.

By examining their features and benefits, I will provide you with expert insights to help you make an informed decision and enhance your shooting capabilities.

My Top Choices for the FN Five seveN MRD

a close up of the FN Five seveN MRD

After conducting extensive research and careful evaluation, I’ve identified my top picks for the FN Five-seveN MRD. These options offer exceptional performance, durability, and value for money.

I’m a purist, so for this test, I’m using a stock FN Five-seveN MRD.

1. Trijicon SRO: Best Overall

My first recommendation for the FN Five seveN MRD pistol, the Trijicon SRO as it easily stands out as the top choice.

Why I Recommend It

Personally, the best feature is its extra large parallax-free, suppressor-height lens even if the sight itself is quite compact. This gives it a wide, encompassing field of view, allowing for both precise aiming and increased situational awareness.

It features both manual and automatic LED brightness modes, providing users with the flexibility to adjust the dot’s brightness according to their preferences and shooting conditions. The fine-tuned, illuminated reticle, together with the exceptionally clear front lens, offers a clear sight picture.

The Button Lock-In mode helps secure my selected brightness setting indefinitely while the Lock-Out feature secures the auto-brightness setting feature.

The top-loading battery design allows for quick and easy replacement in the field. Easy-to-use windage and elevation controls don’t need any kind of tool to use for adjustment. 

Built with Trijicon’s renowned durability, the SRO ensures longevity and reliability in various shooting scenarios. Constructed out of durable 7075-aluminum housing, it is waterproof for up to 10 feet.

With its precise reticle, exceptional sight picture, and compatibility with popular red-dot-ready brands, the Trijicon SRO is the ideal option for maximizing accuracy and performance with the FN Five-seveN MRD pistol.

Technical Specifications

  • Length x Width x Height: 2.2 in x 1.3 in x 1.4 in
  • Weight: 1.6 oz. (45.36g
  • Magnification: 1x
  • Reticle Pattern: 2.5 MOA Dot
  • Reticle Color: Red
  • Illumination Source: LED
  • Illumination Settings: Automatic and 8 Adjustable Settings (2 NV, 6 Visible)
  • Power Source: 1 CR2032 Lithium Battery
  • Battery Life: Over 3 years of continuous use
  • Adjustment: 1 MOA Per Click
  • Adjustment Range: 150 MOA Total Travel
  • Housing Material: 7075-T6 forged aluminum
  • Finish: Matte Black
  • Submersion Depth: 10 ft.

2. Trijicon RMR Type 2: Excellent Performance

The Trijicon RMR Type 2 is an excellent choice for maximizing performance with the FN Five seveN MRD pistol. I’ll tell you why.

Why I Recommend It

Similar to the SRO, the RMR Type 2 provides a clear field of view thanks to its large parallax-free lens that offers unlimited eye relief. Situation awareness and precise aiming are easy and comfortable to the eye. The multi-coated lens offers a “true-color” picture of the target area.

Another of my favorite features is the RMR Type 2’s dual illumination option. A tritium-phosphor lamp illuminates the reticle in low-light conditions. Fiber optics automatically adjust the brightness level and contrast to the ambient lighting conditions. You can easily adjust the brightness of the LED, toggle between automatic and manual modes, and lower the power through easy-to-use buttons located at the sides of the optic.

Made with durable 7075 T6 Aluminum, this red dot sight offers exceptional durability. It’s also water and shockproof, ensuring its survival in different weather conditions and drops. Ruggedized electronics ensure that the red dot functions optimally even in the most challenging conditions.

Technical Specifications

  • Dimensions: 1.8 in x 1.1 in x 1 in
  • Weight: 1.2 oz. 
  • Magnification: 1x
  • Reticle Pattern: 3.25 MOA Dot
  • Reticle Color: Red
  • Illumination Source: LED
  • Power Source: 1 CR2032 Lithium Battery
  • Battery Life: Over 4 years of continuous use (when used at 70ºF (21ºC)) at setting 4 of 8.
  • Adjustment: 1 MOA Per Click
  • Housing Material: Forged Aluminum
  • Finish: Matte Black

3. Leupold DeltaPoint Pro: Robust and Durable

If I’m expecting to shoot rain or shine—or during a blizzard—I mount the Leupold DeltaPoint Pro on my FN Five seveN MRD pistol. It’s a durable and reliable red dot sight.

Why I Recommend It

This sight is made from aircraft-grade 7075 T6 Aluminum, ensuring it can withstand the demands of real-world use. It’s designed to be water and shock-resistant up to 33 feet, providing dependable performance in different weather conditions. It is engineered to withstand extreme climate exposure, from -40 degrees Fahrenheit to 160 degrees Fahrenheit. Surviving 5,000 simulated impacts, it has passed “The Punisher,” Leupold’s very own recoil testing machine with the highest honors.

But it’s not just its toughness that makes it a winner in my eye. The DeltaPoint Pro offers a clear field of view due to its large parallax-free lens. This allows quick target acquisition while maximizing situational awareness. It features three reticle options, giving shooters versatility for various shooting scenarios.

Additionally, the DeltaPoint Pro uses motion sensor technology to conserve battery life.

With its durability and performance, the Leupold DeltaPoint Pro is an excellent choice for the FN Five seveN MRD pistol.

Technical Specifications

  • Battery Type: CR2032
  • Daylight Bright Illumination: Yes
  • Magnification Type: Fixed
  • Reticle Focal Plane: Second Focal Plane
  • Reticle: 2.5 MOA Dot
  • Reticle Type: Illuminated
  • Switch Type: Push Button
  • Weight: 2 oz
  • Elevation and Windage Adjustment Type: Coin Click
  • Elevation/Windage Adjustment Value per Click: 1 MOA
  • Elevation/Windage Adjustment Range: 60 MOA
  • Elevation/Windage Adjustment Range: 17 MIL
  • Elevation/Adjustment Range: 175 cm at 100 meters
  • Elevation Per Revolution: 40 MOA
  • Windage Adjustment Per Revolution: 15 MOA
  • Magnification Min: 1
  • Eye Relief Low Mag: Unlimited
  • Battery Life, Low Intensity: 1600 hours
  • Battery Life, Medium Intensity: 1000 hours
  • Battery Life, High Intensity: 300 hours
  • Illumination Settings: 8

4. HOLOSUN HE508T X2: Great Value for Money

While it does not have advanced features like the more expensive open-reflex red dot sights, the HOLOSUN HE508T X2 offers excellent value for your money, making it a top choice for the FN Five-seveN MRD handgun.

Why I Recommend It

With its Grade 5 titanium housing, this sight is built to last and delivers reliable performance, making it a worthwhile investment. It has an IP67 submersion rating and can withstand working temperatures from -30 degrees Celsius to 70 degrees Celsius.

With its Shake Awake technology, the HE508T X2 conserves battery life by automatically shutting off when not in use; you can reactivate it with a simple shake. Its Solar Failsafe feature ensures that the red dot is always ready for action even if it runs out of battery.

The HE508T X2 offers multiple reticle options, allowing you to customize your shooting experience. The multi-coated lens reduces distortion and reduces glare. However, I find the glass lens a little too small, especially after testing the Trijicon SRO and the Leupold DeltaPoint Pro. 

If you’re in the market for a red dot sight that offers great value for your FN Five seveN MRD pistol, the HOLOSUN HE508T X2 is an excellent choice.

Technical Specifications

  • Reticle: 2 MOA Dot and  32 MOA Circle
  • Light Wavelength: 650nm
  • Reticle Color: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes
  • Power Source: Solar cells and Battery
  • Battery Type: CR1632
  • Battery Life: 50,000 hours
  • Brightness Setting: 10 daylight and 2 night-vision gear compatible
  • Window Size: 0.63 x 0.91 inches
  • Dimension: 1.78 x 1.15 x 1.15 inches
  • Weight: 2 inches
  • Housing Material: Titanium
  • Surface Finish: Titanium
  • Adjustment per Click: 1 MOA
  • Windage and Elevation Travel Range: ±50 MOA

5. HOLOSUN HS507C X2: Compact Powerhouse

Small but awesome! Finally, let’s take a closer look at the HOLOSUN HS507C X2, a compact and powerful red dot sight that’s highly recommended for the FN Five-seveN MRD pistol.

Why I Recommend It

The HS507C X2 is designed with a durable 7075 aluminum housing, ensuring strength and resistance to shocks. Its glass lens is multi-coated to provide excellent light transmission, resulting in a clear and precise reticle. This red dot sight is also IPX-6 waterproof rated, allowing it to withstand submersion in water for up to 30 minutes.

One of its standout features is its impressive battery life, lasting anywhere from 50,000 to 100,000 hours.

With 10 brightness settings for daylight use and 2 settings for night vision, the HS507C X2 offers optimal visibility in different lighting conditions.

Its compact size and sturdy construction make it a reliable and versatile choice for conceal carry or EDC pistols. 

Technical Specifications

  • Reticle: 2 MOA Dot and 32 MOA Circle
  • Light Wavelength: 650nm
  • Reticle Color: Red
  • Parallax Free: Yes
  • Unlimited Eye Relief: Yes
  • Magnification: 1x
  • Multi-Coatings: Yes
  • Power Source: Solar and Battery
  • Battery Type: CR1632
  • Battery Life: 50,000 hours
  • Brightness Setting: 10 Daylight and 2 Night-vision compatible
  • Window Size: 0.63×0.91 inches
  • Dimension: 1.78 x 1.15 x 1.15 inches
  • Weight: 1.5 oz.
  • Housing Material: 7075 T6 Aluminum
  • Surface Finish: Anodize
  • Adjustment per Click: 1 MOA
  • Wind and Elevation Travel Range: ±50 MOA
  • Submersion Rating: IP67
  • Vibration: 5000G

Pros and Cons of Open Reflex Red Dot Sights

The red dot sights presented here are all open-reflex red dot sights. Open reflex red dot sights are optical sights designed for rapid target acquisition and ease of use. Unlike traditional tube-style red dot sights, open reflex sights have an exposed design without a surrounding tube or housing.

Here are some general pros and cons associated with these types of red dot sights:


  1. Quick Target Acquisition: One of the primary advantages of open reflex sights is their ability to facilitate rapid target acquisition. The reticle, typically a red dot, is superimposed on the target, allowing users to aim with both eyes open and acquire the target quickly.
  2. Unrestricted Field of View: Open reflex sights offer an unlimited field of view since there is no tube or enclosure around the sight. This can be advantageous in dynamic and fast-paced shooting scenarios.
  3. Parallax-Free Design: Many open reflex sights are designed to be parallax-free, meaning that the reticle remains on the target regardless of the position of the shooter’s eye. This feature ensures accuracy and consistency.
  4. Compact and Lightweight: Open reflex sights are generally more compact and lightweight compared to tube-style red dot sights, making them suitable for mounting on a variety of firearms without adding significant weight or bulk.
  5. Ease of Use: These sights are user-friendly, making them suitable for both novice and experienced shooters. These sights’ simple reticle and point-and-shoot nature make them easy to learn and operate.


  1. Exposed Design: The open design of these sights leaves the lens exposed, which makes them more susceptible to dirt, debris, and moisture. 
  2. Battery Dependency: Most open reflex sights are powered by batteries, and users need to be mindful of battery life. A dead battery can render the sight useless.
  3. Durability Concerns: While many open reflex sights are durable, the lack of an enclosed design means they may be more vulnerable to physical impacts or rough handling. Users should consider the build quality and materials used in the sight’s construction.
  4. Brightness Adjustment in Bright Conditions: In extremely bright conditions, some open reflex sights may struggle to provide a bright enough reticle. 
  5. Not Ideal for Precision Shooting: While excellent for quick target acquisition, open reflex sights may not be the best choice for precision shooting at longer distances. Shooters engaged in activities like long-range competition shooting may prefer other optics.

Choosing the Best Red Dots for your FN Five-seveN MRD Pistol

Selecting the right red dot sight for your FN Five-seveN MRD Pistol can be challenging with all the variants and models out there. Here’s my guide to help you make the right decision:

  1. Compatibility: Make sure the red dot sight is compatible with the FN Five-seveN MRD Pistol. Check the mounting options and specifications to confirm a proper fit.
  2. Reticle Type and Design: Common options include a simple red dot, crosshair, or circle-dot. Consider the size and design of the reticle for optimal visibility.
  3. Size and Weight: Opt for a red dot sight that complements the size and weight of your FN Five seveN MRD Pistol. A compact and lightweight sight is preferable to maintain the pistol’s balance and handling.
  4. Durability and Construction: Select a sight with a durable construction. Look for materials like aluminum or magnesium alloy, which are lightweight yet tough. Waterproof and shockproof sights are excellent choices.
  5. Battery Life: Opt for a sight with a long battery life or features like auto-off to conserve power when not in use. 
  6. Brightness Settings: Ensure that the red dot sight has adjustable brightness settings to accommodate different lighting conditions. 
  7. Ease of Use and Adjustments: Look for a red dot sight that is user-friendly with easy and intuitive controls. Quick and simple adjustments for windage and elevation are important for on-the-fly modifications.
  8. Co-witness Compatibility: Co-witnessing allows the use of iron sights in conjunction with the red dot sight, providing redundancy and an alternative aiming option.


After thoroughly examining the top contenders for the best red dot sights for the FN Five seveN MRD pistol, it’s evident that each sight offers its own advantages and attributes. Personally, the Trijicon SRO and the Leupold DeltaPoint Pro are my favorites due to their large lenses. The Holosuns are great too although I find their lenses a bit tad for my taste.

Whether you prioritize durability, battery life, or versatility, there’s a red dot sight to suit your needs.

By considering the features and benefits of options such as the Trijicon SRO and RMR Type 2, Leupold DeltaPoint Pro, and HOLOSUN HE508T X2 and HS507C X2, you can make an informed decision to enhance your shooting capabilities.

About the author

The name's Chris. Just a regular dude who loves firearms. I've been shooting since I was a kid. My old man taught me the ropes.

I'll never forget the first time I missed an easy shot on a buck, thanks to a bum scope. The image was fuzzier than my dog's butt. After that, I got obsessed with understanding scopes. What makes the good ones tick and the bad ones trash. After a few years and a few thousand bucks, I learned what separates the winners from the losers. Once I had a good stockpile of knowledge, I launched this site.

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