The AR15 is a popular and versatile rifle that is used for hunting, target shooting, and even in military and law enforcement operations. It is equipped with a fixed front sight that can sometimes interfere with the placement of a red dot sight. However, there are some red dot sights that are specifically designed to work with the fixed front sight of an AR15. In this article, we will explore some of the best red dot sights for AR15 with fixed front sight, their features, and what to look for when choosing one.
Comparisons Table Of Best Red Dot Sights For Ar15 With Fixed Front Sight
1. Clear Shot, Clear Sight: Beileshi Red Dot Gun Sight for Accuracy

The Beileshi 3-4 MOA red dot sight is a highly accurate and versatile optic that is perfect for a wide range of shooting scenarios. Its multi-coated scratch resistant lens provides enhanced image clarity and increased light transmission, making it ideal for low light situations. Additionally, the sight offers two height options (Low and Lower 1/3 Co-Witness), ensuring it can be mounted on any platform.
Constructed with a shockproof aluminum body, this red dot sight is built to withstand the toughest conditions. The sight is nitrogen purged and O-ring sealed, making it fully waterproof and resistant to scratches and other damage. With 11 red dot brightness settings, shooters can adjust the dot intensity to suit the situation at hand, providing optimal visibility in any light conditions. Overall, the Beileshi red dot sight is a compact and reliable optic that is perfect for close-range and general shooting, as well as hunting and tactical scenarios.
Features
- Multi-coated scratch resistant lens for enhanced image clarity and increased light transmission
- Two height options (Low and Lower 1/3 Co-Witness) for versatile mounting on any platform
- Shockproof aluminum body for durability in tough conditions
- Nitrogen purged and O-ring sealed for waterproof and scratch-resistant construction
- 11 red dot brightness settings for optimal visibility in any light conditions
- Compact and reliable for close-range and general shooting, as well as hunting and tactical scenarios
Pros
- Highly accurate and versatile optic
- Multi-coated scratch resistant lens provides enhanced image clarity and increased light transmission
- Offers two height options (Low and Lower 1/3 Co-Witness), ensuring it can be mounted on any platform
- Constructed with a shockproof aluminum body, built to withstand tough conditions
- Nitrogen purged and O-ring sealed, making it fully waterproof and resistant to scratches and other damage
- 11 red dot brightness settings allow for optimal visibility in any light conditions
- Compact and reliable, perfect for close-range and general shooting, as well as hunting and tactical scenarios
Cons
- 3-4 MOA dot size may not be suitable for long-range shooting
- Battery life may be shorter than other similar optics
- May not be as durable as higher-end red dot sights on the market
- May have slight parallax issues at longer distances
The Beileshi red dot sight has a 3-4 MOA, which means that the dot covers an area of 3-4 inches at 100 yards.
Yes, the Beileshi red dot sight offers two height options (Low and Lower 1/3 Co-Witness), ensuring it can be mounted on any platform.
Yes, the Beileshi red dot sight is fully waterproof, nitrogen purged, and O-ring sealed, making it resistant to water damage and other external elements. It is also scratch-resistant, ensuring that the lens remains clear and visible in any condition.
2. Feyachi S27: The Perfect Addition to Your AR-15

The S27 Fiber Optics Iron Sight is a must-have for any shooting enthusiast. Featuring a red and green dot for easy visibility, these sights are quick to deploy with a flip-up design. Simply push the button and fold them down when not in use, and manually flip them up for quick deployment. The rear sight has dual aperture for quick target acquisition with windage adjustment, making it perfect for both short and long-distance shooting.
Constructed from lightweight and durable aluminum, these sights are Mil-Spec hard anodized for added protection. The front sight has A2 post elevation adjustment, while the rear sight has a micro-style windage knob that features the same MOA adjustment as a standard sight. Easy to install on standard picatinny and weaver rails with the included allen wrench, this low-profile flip-up sight set is a great addition to any firearm.
Features
- Red and green dot for easy visibility
- Quick deployment with flip-up design
- Dual aperture on rear sight for quick target acquisition
- Windage adjustment on rear sight for short and long-distance shooting
- Lightweight and durable aluminum construction
- Mil-Spec hard anodized for added protection
- Front sight with A2 post elevation adjustment
- Micro-style windage knob on rear sight with MOA adjustment
- Easy installation on standard picatinny and weaver rails
- Low-profile design for a sleek look on any firearm
Pros
- Red and green dot for easy visibility
- Quick to deploy with flip-up design
- Dual aperture rear sight for quick target acquisition
- Windage adjustment for both short and long-distance shooting
- Lightweight and durable aluminum construction
- Mil-Spec hard anodized for added protection
- A2 post elevation adjustment on front sight
- Easy to install on standard picatinny and weaver rails
- Low-profile design
Cons
- No elevation adjustment on rear sight
- May not fit all firearms or rails
- Requires manual flipping up and down for deployment and storage
The S27 Fiber Optics Iron Sight is compatible with any firearm that has standard picatinny and weaver rails, such as AR-15s, shotguns, and pistols.
Yes, the S27 Fiber Optics Iron Sight is easy to install on standard picatinny and weaver rails with the included allen wrench. Simply follow the instructions provided to ensure proper installation.
Yes, the S27 Fiber Optics Iron Sight is perfect for both short and long-distance shooting. The rear sight has dual aperture for quick target acquisition with windage adjustment, while the front sight has A2 post elevation adjustment. This makes it easy to adjust the sights for different shooting distances.
3. Sights Set: GVN Iron Sights for a More Effective Shooting Experience

The Flip Up Backup Sights by Ozark Armament are a reliable and durable option for any shooter. The adjustable front and rear sights allow for precise aiming and targeting, while the two apertures on the rear sight improve registration for a standard sight experience. Made of impact-resistant polymer, these sights are both lightweight and durable, and come with a handy front sight adjustment tool for easy installation.
These sights are compatible with any MIL-STD-1913 Picatinny receiver rail and provide the same height-over-bore as standard A2 irons. The spring-loaded design allows for quick and easy transition between folded and flipped up positions. Please note that these sights are not compatible with railed gas blocks.
Features
- Adjustable front and rear sights for precise aiming and targeting
- Two apertures on the rear sight for improved registration
- Made of impact-resistant polymer for lightweight and durability
- Comes with a front sight adjustment tool for easy installation
- Compatible with any MIL-STD-1913 Picatinny receiver rail
- Same height-over-bore as standard A2 irons
- Spring-loaded design for quick and easy transition between folded and flipped up positions
- Not compatible with railed gas blocks.
Pros
- Adjustable front and rear sights for precise aiming and targeting
- Two apertures on the rear sight improve registration for a standard sight experience
- Made of impact-resistant polymer, lightweight yet durable
- Comes with a front sight adjustment tool for easy installation
Cons
- Not compatible with railed gas blocks
The Ozark Armament Flip Up Backup Sights are made of impact-resistant polymer, which makes them both lightweight and durable
These sights are compatible with any MIL-STD-1913 Picatinny receiver rail and provide the same height-over-bore as standard A2 irons. However, they are not compatible with railed gas blocks.
Yes, the Ozark Armament Flip Up Backup Sights come with a handy front sight adjustment tool for easy installation. This makes it easy for shooters to adjust their sights to their desired specifications.
4. Sight in on Your Target with Marmot Flip Up Iron Sights

The Iron Sights set is a reliable and durable option for your firearm. The A2 front sight post is fully adjustable for elevation, ensuring precise aiming. The rear sight features dual aperture windage adjustment, allowing for quick and easy adjustments in the field. The low profile flip-up design allows for the sights to lay flat when not in use, and can be easily flipped up by pushing the button or by hand.
Crafted from aircraft-grade aluminum and finished with a matte black anodized coating, these sights are built to last and withstand the elements. The set is compatible with 21.4mm standard Picatinny Weaver rails, making it easy to install on a variety of firearms. Whether you’re using it for precision shooting or close-quarters combat, the Iron Sights set is a great addition to your firearm.
Features
- A2 front sight post is fully adjustable for elevation
- Rear sight features dual aperture windage adjustment for quick and easy adjustments
- Low profile flip-up design allows for the sights to lay flat when not in use and easily flipped up by pushing the button or by hand
- Crafted from aircraft-grade aluminum for durability and finished with a matte black anodized coating
- Compatible with 21.4mm standard Picatinny Weaver rails for easy installation on a variety of firearms.
Pros
- Fully adjustable A2 front sight post for precise aiming
- Dual aperture windage adjustment on the rear sight for quick and easy adjustments
- Low profile flip-up design allows for easy transport and storage
- Crafted from durable aircraft-grade aluminum
- Matte black anodized coating for added durability
- Compatible with 21.4mm standard Picatinny Weaver rails
- Suitable for precision shooting and close-quarters combat
Cons
- Iron sights may not be as precise as other aiming devices, such as scopes or red dot sights
- May require additional tools or expertise to install on some firearms
- Flip-up design may be prone to accidental activation or damage if not handled carefully
The A2 front sight post on the Iron Sights set is fully adjustable for elevation, allowing for precise aiming.
The rear sight of the Iron Sights set features dual aperture windage adjustment, which allows for quick and easy adjustments in the field.
The Iron Sights set is compatible with 21.4mm standard Picatinny Weaver rails, making it easy to install on a variety of firearms.
5. Shoot with Confidence: Feyachi Front and Rear Sights

The upgraded spring load button of these iron sights makes it easier for you to quickly flip them up when you need to use them. The A2 Front Sight is adjustable for elevation, while the rear sight has a dual aperture design that allows you to easily switch between CQB and precision modes. With the scale mark on the rear sight, you can easily rotate the knob to reach a proper position for aiming.
These iron sights are perfect for any hunting or tactical rifle with a Picatinny or Weaver rail mount, including popular brands such as Winchester, Remington, and Colt. Made of high-quality aluminum alloy materials, these iron sights are tough and durable enough to withstand even the most challenging shooting situations. Whether you’re a hunter or a tactical shooter, these iron sights will help you achieve precise aiming and accurate shots.
Features
- Upgraded spring load button for quick and easy flipping up
- Adjustable A2 front sight for elevation
- Dual aperture design on rear sight for CQB and precision modes
- Scale mark on rear sight for easy adjustment
- Compatible with Picatinny or Weaver rail mounts on popular rifle brands
- Made of high-quality aluminum alloy materials
- Tough and durable for challenging shooting situations
- Helps achieve precise aiming and accurate shots
Pros
- Upgraded spring load button allows for quick and easy flipping up of iron sights
- A2 Front Sight is adjustable for elevation
- Rear sight has a dual aperture design for switching between CQB and precision modes
- Scale mark on rear sight makes it easy to adjust for proper aiming position
Cons
- May not be suitable for rifles without Picatinny or Weaver rail mounts
- Adjustment knobs may require some getting used to for new users
These iron sights are compatible with any hunting or tactical rifle that has a Picatinny or Weaver rail mount. This includes popular brands such as Winchester, Remington, and Colt.
The A2 Front Sight is adjustable for elevation. To adjust, use a tool such as a sight adjustment tool or a small screwdriver to turn the adjustment screw on the front sight post. Turning the screw clockwise will raise the point of impact, while turning counterclockwise will lower it.
Yes, the rear sight has a dual aperture design that allows you to easily switch between CQB and precision modes. Simply flip the sight up and choose the appropriate aperture for your shooting needs. The scale mark on the rear sight makes it easy to rotate the knob to reach a proper position for aiming.
Why do people buy red dot sights for their AR15s with fixed front sights
Red dot sights are becoming increasingly popular among AR15 enthusiasts. They provide quick target acquisition and improve accuracy, making them an essential tool for both hobbyists and professionals. However, finding the right red dot sight for your AR15 can be a daunting task, especially if you have a fixed front sight. In this buying guide, we will explore the reasons why people buy red dot sights for their AR15s with fixed front sights and provide five sub-heading elements to help you make an informed decision.
Improved accuracy
Red dot sights allow for quick target acquisition and improved accuracy, making them ideal for hunters, competitive shooters, and law enforcement officers.
Quick target acquisition
Red dot sights eliminate the need to align front and rear sights, allowing for quick target acquisition and improved shooting speed.
Compatibility with fixed front sights
Some AR15s come with fixed front sights that cannot be removed. Red dot sights with a low profile allow for co-witnessing with fixed front sights, providing a seamless shooting experience.
Versatility
Red dot sights can be used in a variety of lighting conditions, making them ideal for shooting in low light environments.
Reduced eye strain
Red dot sights allow for both eyes to remain open, reducing eye strain and improving situational awareness.
Compatibility
When purchasing a red dot sight for an AR15 with a fixed front sight, it’s essential to ensure that the sight is compatible with your rifle. Look for sights with a low profile that allow for co-witnessing with your fixed front sight.
Reticle
Red dot sights come in a variety of reticles, including dot, crosshair, and circle. Consider which reticle best suits your shooting needs.
Battery life
Red dot sights are battery-powered, and battery life can vary significantly between models. Look for sights with long battery life to avoid running out of power during shooting sessions.
Durability
Shooting can be a rugged activity, and your red dot sight needs to withstand the elements. Look for sights with durable construction, waterproofing, and shock resistance.
Price
Red dot sights can range from budget-friendly to high-end models, so it’s essential to consider your budget when making a purchase. While it’s tempting to go for the cheapest option, investing in a higher-quality sight can save you money in the long run.
Conclusion
Red dot sights are a valuable tool for AR15 owners with fixed front sights. They provide quick target acquisition, improved accuracy, and reduced eye strain, making them ideal for a variety of shooting applications. When purchasing a red dot sight, consider compatibility, reticle, battery life, durability, and price to ensure you make an informed decision.
Frequently Asked Questions
Q: What is a red dot sight?
A: A red dot sight is an optical sighting device that projects a red dot onto a lens in order to help the shooter aim at a target. The shooter looks through the sight and aligns the red dot with the target, making it easier to aim accurately.
Q: Why are red dot sights preferred for AR15 rifles with fixed front sights?
A: Red dot sights are preferred for AR15 rifles with fixed front sights because they allow the shooter to see through the sight and align the red dot with the target, even if the front sight is in the way. This makes it easier to aim accurately and quickly, especially in close-quarters situations.
Q: What are some of the best red dot sights for AR15 rifles with fixed front sights?
A: Some of the best red dot sights for AR15 rifles with fixed front sights include the Aimpoint PRO (Patrol Rifle Optic), Trijicon MRO (Miniature Rifle Optic), and EOTech EXPS2-0 Holographic Sight. These sights are all durable, reliable, and offer excellent performance in a variety of shooting situations.
Q: What are some of the key features to look for in a red dot sight for an AR15 with a fixed front sight?
A: When choosing a red dot sight for an AR15 with a fixed front sight, it is important to look for a sight that is durable, reliable, and easy to use. Other features to consider include the size and weight of the sight, the brightness and clarity of the red dot, and the battery life of the sight.
Q: Can a red dot sight be used in conjunction with a fixed front sight on an AR15 rifle?
A: Yes, a red dot sight can be used in conjunction with a fixed front sight on an AR15 rifle. The shooter simply looks through the sight and aligns the red dot with the target, even if the front sight is in the way. With practice, this can be done quickly and accurately, making it a popular choice for many shooters.

Peter B Brewster is an avid writer who loves to share his knowledge about scopes, binoculars, mounts, sights, and other related products. He has been writing for several years and has gained a reputation for his expertise in the field.