Most AR-15s these days are coming with free float rails that lack a fixed front sight post…
But I’m hear to tell you that there is nothing wrong with an AR-15 that still has a fixed front sight…
And if you’re worried about finding an optic that will work with your AR-15… don’t be…
Because in this post, I’m going help you find the best red dot sight for an AR 15 with a fixed front sight post, and I’ll be doing that, by sharing with you my list of the Top 6 red dot sights that will work extremely well with your gun…
By the end, you’ll have a clear understanding of what some of the best options are that are currently available, and you should have all the information you need to determine which red dot is going to work best for you…
Let’s get started!
Best Red Dot Sight For An AR 15 With Fixed Front Sight – Top 6 List…
The best red dot sight for and AR 15 with a fixed front sight is the Aimpoint Micro T2. It’s the best because it’s extremely reliable and rugged, and the 2 MOA dot reticle will easily co-witness with the sights on the AR-15…
Below, I’ll share with you more reasons why I think the Aimpoint Micro T2 is the best choice, and I’ll also share with you 5 other amazing options that you should consider…
1. Aimpoint Micro T2 (Best Overall Pick!)
Number 1 on my list of AR 15 red dot sights is the Aimpoint Micro T2, and let me begin by saying that this is an optic that will last you a lifetime. It’s a high-quality and extremely well built micro red dot sight, and it’s as good as it gets when it comes to reliability and durability…
It features an anodized impact-resistant aluminum housing which makes it a tough, rugged, and highly-durable optic, and it’s water resistant in up to a whopping 80ft of water…
The battery life that you get with this optic is rated for 50,000 hours which means that you can leave it on (and ready to go) at all times without worrying about draining the battery, and it has multiple brightness settings including eight daylight settings, four night vision compatible settings, and even an ultra-bright setting if your shooting conditions ever require it…
It also includes exceptional optics with an ultra-clear lens, and a 2 MOA dot reticle which will co-witness easily with your front sight post for super-fast target acquisition…
Last, all this comes in a unit that weighs just 3oz, and those weight savings will help keep your carbine handy and fast into action…
So all in all, the Aimpoint Micro T2 is still the king of red dot sights, and it’ll perform exceptionally well on your fixed front sight AR 15.
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2. Aimpoint PRO (Patrol Rifle Optic)
Number 2 on my list is the Aimpoint PRO which stands for Patrol Rifle Optic. This red dot was actually designed for law enforcement use, and it’s built to be incredibly rugged and reliable (like all Aimpoint optics)…
Now, unlike the Micro T2, the Aimpoint PRO is a full size red dot sight, and because of that it features a super-tough anodized aluminum housing. In addition to that, it’s rated to be waterproof in up to 150 feet of water, and it can easily handle rainy or snowy weather conditions…
Also, because it’s a full size red dot sight, it includes a large objective lens with a 2 MOA dot reticle. This gives you a wide field of view when looking through the optic, and that will allow you to see more and shoot faster as you look past your AR’s front sight post…
The battery life that you get with the Aimpoint PRO is also ultra long. It’s rated to run for around 3 years, and again, that allows you to keep the sight always at the ready and not have to worry about the battery draining on you at the wrong time…
Last, one of the stand-out features that you get with this optic is the included mount with an auto-torque knob. Because it’s oversized, you only need your hands to mount the sight onto your AR 15. Being able to mount or adjust your sight without the need for tools is a big advantage, and it certainly sets this optic apart from a lot of it’s competitors…
So all in all, the Aimpoint PRO is another excellent red dot choice for a fixed front sight AR.
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3. Holosun HS510C
The next red dot sight on my list is the Holosun HS510C, and there is a lot to love about this optic. To start with, the Holosun HS510C brings with it 50,000 hours of battery life (equivalent to roughly five years), and it has a solar backup to ensure that even if the battery goes flat, the reticle will still work for you…
On top of that, with the included auto-settings engaged, the reticle brightness will automatically adjust to ambient lighting conditions in which you’re shooting. That’s a really unique feature in the world of AR-15 red dots, and it’s just one of the useful features that this sight is loaded with…
Now, if you find yourself trekking through rough terrain, the HS510C brings with it a pretty solid toughness standard. It actually includes a titanium hood to protect the large sight window, and the sight housing is crafted from aluminum to resist impact or scratches during use…
Now that large sight window gives you a wide-open field of view (FOV) when you’re looking through the optic (which will help you acquire targets faster), and you also get 3 fantastic reticle options that are programmed into this sight…
The 3 reticle options are a 2 MOA dot, a 65 MOA ring, and a 65 MOA ring with a 2 MOA dot in the center (the Circle Dot Reticle). Out of the 3, my favorite is by far the Circle Dot Reticle, because it helps you shoot fast and accurately at the same time, but the other two options are there just in case you prefer them…
Last, the HS510C is a more affordable option that many of the other sights on this list (like the Aimpoints), and it will work very will if your AR-15 has a fixed front sight post. So I think it’s a great value if you want a super fast red dot sight that is packed with cool features for your AR-15.
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4. Eotech EXPS3
For many AR 15 owners, especially those who want lightning speed and ultra reliability, the Eotech EXPS3 could be the one to fit your fixed front sight AR15. The Circle Dot Reticle, anti-glare coating, and crystal clear lens on this holographic sight will give you fast target acquisition under any circumstances…
Like the Holosun 510C, the EXPS3 features a Circle Dot Reticle which makes it an extremely fast red dot sight. The 68 MOA circle (with a 1 MOA dot in the center) is very large and catches your eye incredibly quickly, and the holographic technology makes the huge sight window crystal clear when you’re looking through it…
Now that large sight window gives you a wide field of view when you’re shooting, and it effectively eliminates the suffocating “tube effect” that you sometimes get with smaller red dot sights. It’s also an extremely rugged optic that has been used in military and law enforcement circles, and it’s waterproof in up to 33ft of water…
Last, the included quick-detach lever makes it easy to mount on your AR’s rail, and the EXPS3 includes night vision compatible settings along with the daylight brightness settings (unlike the EXPS2)…
So the EXPS3 is another amazing optic, and it will work extremely well with your AR-15 whether it has a front sight post or not.
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5. Trijicon MRO 1x25mm 2MOA Reticle
Number 5 on my list of amazing red dot sights for your AR-15 is the Trijicon MRO, and there are many reasons why it’s a fantastic optic…
First of all, it’s a micro red dot sight, but it sports a large 25 mm objective lens. That large objective lens gives you a wide field of view, while at the same time, the sight remains very compact and lightweight…
The crystal clear image, courtesy of the high-quality lens coatings, delivers you more contrast and super-fast target acquisition, and the 2 MOA dot reticle is great for quicks shots up close or for precision shots that are out at distance…
The MRO also has eight brightness settings, two of which are night vision compatible, and the battery life is able to power the sight for around 5 years…
Last, the MRO is built to be extremely rugged and reliable. It’s comparable to the Aimpoint optics when it comes to durability, but it actually comes in at a more affordable price point…
So the MRO is another amazing option. Especially if you want a super reliable, compact red dot with an amazing field of view.
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6. Sig Sauer Romeo5 (Best Budget Option)
At number 6 is the Sig Sauer Romeo5, and it’s the most affordable option on my list. While many shooters know Sig Sauer for their world-class pistols, they have also started to produce a rugged and durable line of optics…
Now, this sight comes with many cool features considering it’s low cost. For example, it includes Sig’s MOTAC auto-sensor which switches the sight off if no movement is sensed for two minutes or longer…
On top of that, as soon as the optic senses motion (like when you pick up your gun), the sensor reactivates, and the optic will revert to the setting it was on before switching off…
This is an awesome feature because it preserves the optic’s battery life, which is also extremely long at 40,000 hours (4 years)…
On top of that, the 2MOA dot reticle is crisp and clear, and the overall build quality is pretty high on this optic, especially considering the price point to which it’s set…
Last, the Romeo5 comes with a high mount that will co-witness with your AR-15’s front sight post, and it’s just a great option if you want an affordable red dot that is tough and features ultra long battery life.
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