The Trijicon ACOG (Advanced Combat Optical Gunsight) riflescope is good for both short and mid-range uses and allows a wider field of view than your usual closed rifle scope.
Yet, the Trijicon ACOG Scope will cost you at least $3,000 for the cheapest versions.
So I made a buying guide for the best ACOG clones and alternatives that are available in the market now.
These budget ACOG clones won’t burn a hole in your wallet and should provide at least a similar performance compared to the high-end tactical Trijicon ACOG.
Under the same testing conditions, I’ve found these scopes perform at the same level for a fraction of the price.
- Top 7 Picks for Best ACOG Clones – Full Reviews
- 1. Vortex Optics Spitfire 3x Prism Scope
- 2. Sig Sauer Bravo5 5x30mm
- 3. Ozark Armament 4x BDC Illuminated Reticle Rifle Scope
- 4. Monstrum Tactical 3×30 Ultra-Compact Rifle Scope with Illuminated Range Finder Reticle
- 5. Wipboten Rifle Scope 4×32 True Fiber Red Illuminated Crosshair BDC Riflescope
- 6. Terminus Optics 4×32 Chevron Reticle Red Fiber Riflescope
- 7. Crushunt 4×32 Red Chevron Glass Etched Reticle Riflescope
- Why Use an ACOG Scope?
Top 7 Picks for Best ACOG Clones – Full Reviews
1. Vortex Optics Spitfire 3x Prism Scope
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Vortex has been in the business of providing quality lenses and scopes for years now and even has a community of avid fans.
It’s easy to garner a lot of respect when you’re making high-quality products for gun enthusiasts at mid-level prices.
I own a few and continue to get surprised by how high-quality they are for the price.
The Vortex Optics Spitfire 3x Prism Scope model is their take on how to make the best ACOG clone without breaking the bank.
It’s constructed well with quality coated lenses, so you can be sure that you have consistent fast target acquisition while on the move.
It’s the best option I recommend that’s close to the real ACOG scope of Trijicon.
The Vortex Optics Spitfire Prism Scope is the best ACOG clone, named due to the EBR-556B reticle being etched directly onto the prism.
The reticle is similar to your standard t-shape but is specialized, providing range references and bullet drop compensation from 0-500 yards.
It also allows red/green t-dot illumination switching depending on your preference. I’ve found red to be ideal in bright lights and green to work in low-light conditions.
This gives a consistent and quick reticle that you can rely on regardless of illumination.
The illuminated reticle is battery-powered, which should last several hundred hours at minimum power.
Brightness adjustments are easy to do with the mounted dial for better power management.
This scope includes a fast-focus eyepiece so you can easily adjust the focus of the best ACOG clone depending on the conditions you’re in.
The scope even comes with a multi-coated lens, which provides an anti-reflective effect to better adapt to any situation and provide you with a clear vision (useful for sudden low-light scenarios).
This ACOG-style scope is adaptable to different rifles thanks to its multi-height rail mount system that allows you to mount this riflescope at a 40-millimeter mounting height.
The lens can manage a reliable 3x magnification with an eye relief of about 2.8 inches, roughly average for ACOG scopes.
Thanks to the two additional rails, known as Picatinny rails, you can add an additional offset auxiliary sight, like a reflex sight or red dot sight, for those tricky quick close-quarter moments.
It’s been my experience that by simply shifting my eye from the ACOG clone to my backup sights, I’ve been able to stay in the fight longer, seamlessly aiming across multiple environments.
Multi-coated riflescopes are key to stable performance regardless of illumination levels.
At the same time, the etched reticle keeps the objective lens stable for quick aiming, regardless if you’re a competitive shooter or a hunter.
If anything, the Vortex Optics Spitfire 3x Prism Scope ACOG clone is a fantastic piece overall if you don’t mind paying a premium.
With this riflescope, you’re bound to get the reliable performance that the best ACOG clone can give.
Plus, you’ll be covered by Vortex’s lifetime warranty program.
That’s right, this time it’s an actual lifetime guarantee, no need for receipt or anything. If you find that your scope is not up to standard you can easily send it back to them free of charge*.
*Obviously, some repairs require a fee, but this is still a pretty good guarantee on their end.
- Multi-coated scopes are best for rapidly changing conditions
- Adjustable brightness settings make this ACOG clone adaptable regardless of
- illumination levels
- The Etched-prism reticle is stable for quick aiming with red/green configurations.
- Lifetime warranty with Vortex Optics
- Solely battery-powered illumination may run out on higher brightness levels
- Higher than the average price-point
- Slightly heavier than other scopes
2. Sig Sauer Bravo5 5x30mm
Sig Sauer is probably the second-most popular brand when it comes to gun accessories.
Originating in Europe, they’ve since found their main base to be in America.
They regularly supply firearms and their respective accessories like riflescopes to professional US law enforcement as well as civilian gun owners.
A best ACOG clones list won’t be complete without including some of Sig Sauer’s Battle Sights, specifically their Bravo5 5x30mm Battle Sight model.
Everything about this rifle scope is designed with purpose as well as aesthetic attention. I appreciate it’s sharp, stealth bomber-like sci-fi aesthetic.
It is sleek, accurate, and might be the next best Trijicon ACOG clone for people who don’t mind spending a bit more on a rifle scope.
In terms of construction, The Sig Sauer Bravo5 is every bit as technologically advanced as the Trijicon ACOG.
It’s rugged yet sleek where it counts, making sure to remove any pesky snag points that might come in contact with your gear.
The Bravo5 uses a magnesium alloy housing, keeping the ACOG-style scope lightweight while giving its lens much-needed protection while out on the field.
It’s even certified IPX-8 water-proof and fog-proof, so you don’t need to worry about moisture messing up the lens.
Its objective lens is probably one of the BEST in the market.
Without getting too technical, Sig Sauer’s Megaview system guarantees a wider field of view as well as less distortion when aiming due to its specialized lens shape.
The Bravo5 relies on battery power instead of fiber optics for its illumination.
Luckily, it manages power consumption with its MOTAC, or Motion Activated Illumination, which can sense motion, automatically illuminates your scope, and powers it down when it’s stable.
For daytime reticle use, you can manage over 20 different brightness settings to better suit your lighting conditions.
It even has two night-mode settings similar to standard night vision devices.
I’ve been able to do it in dark and low-light conditions as it delivers excellent night vision.
The illuminated scope uses a horseshoe dot reticle, which includes markers for bullet drop compensation, as well as windage and elevation.
The scope has a fixed 4x magnification as well as a 30mm objective lens. The eye relief on the scope is measured at 2.2 inches, which gives you a great field of view of roughly 53 feet at 100 yards.
It’s mainly fixed on rifles like an AR-15 through the main rail mount body. I was able to install it in a matter of seconds.
It also includes an auxiliary Picatinny rail mount for an additional red dot sight. You can ensure fast target acquisition with this riflescope setup regardless of distance.
The Sig Sauer Bravo5 is probably the next best competitor brand after the iconic Trijicon ACOG scopes.
It’s sleek when needed in some areas yet rugged enough to handle most situations you’ll find yourself in out on the field.
Though it is pricey, it can’t be skipped on a list of best ACOG clones as it probably comes closest in terms of attention to detail and technological advancement to Trijicon.
If you can spend a bit but not as much for the Trijicon original, you can be happy that Sig Sauer has options for your AR-15 (or any rail-system rifle you have).
You even have the advantage of Sig Sauer’s 5-year warranty program, so your usage is essentially protected by Sig Sauer themselves.
What I also love is that this model is capable of being used in the dark and in low-light conditions. You can see without light transmission because of its night vision mode options.
- Sig Sauer scopes have some of the most advanced lens technologies
- Lightweight and low-profile
- Great battery management and brightness options
- 5-year warranty period
- Has an auxiliary mount for a red dot sight and windage and elevation
3. Ozark Armament 4x BDC Illuminated Reticle Rifle Scope
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Ah, Ozark Armament.
There seems to be a bunch of newer scope and gun accessory manufacturers popping out as of late, this time from a small pacific northwest town in the US.
But homegrown products are sometimes known for their extensive attention to detail, or at least Ozark Armament is.
Their 4x BDC Illuminated Reticle Rifle Scope model is their entry into the ACOG alternative market, and it’s the cheapest one on this list by far.
The Ozark Armament, despite being my budget pick, includes many features that are normally found in more expensive scopes in the market.
The reticle is completely battery-powered, as expected.
You can’t expect to pay just roughly $60 and get tritium in your scope (the isotope of Trijicon with a half-life of 12 years uses for their illuminated reticle).
So be ready to change batteries often if you’re not used to power management not normally found on
Still, the lens is also specially treated to be dust-proof, water-resistant, and fog-proof, making the scope viable in both humid and cold environments.
The illuminated reticle scope features a 4x fixed-magnification, a very generous 3.5-inch eye relief, and toolless mounting systems for its main body and an auxiliary Picatinny mount for an added red dot sight.
Everybody loves having options. I sure do.
It leans towards the heavy side, though, at around 1.5 pounds.
While it isn’t going to start dragging down your shoulders, you can expect to feel like you have just attached something hefty to your gun.
With enough practice, I find that you’ll be able to adjust quickly to the weight difference.
The Ozark Armament 4x BDC Rifle Scope, titled “Rhino” on their official page, is a good choice for beginner gun enthusiasts looking to start investing in better scopes for their rifles.
It’s rugged enough for most hunting and shooting situations you’ll find yourself in while being relatively easy to manage due to its rail system mounting.
- Very cheap
- Easy mounting due to rail system
- Different colored reticle options
- Generous eye-relief
- Includes an auxiliary mount for a red dot sight
- No brightness settings
- Heavier than other ACOG scopes
4. Monstrum Tactical 3×30 Ultra-Compact Rifle Scope with Illuminated Range Finder Reticle
Monstrum is a brand that manufactures fantastic rifle scopes and multi-coated lenses out of Southern California.
For about 10 years, they’ve used their relatively new position within the market to push boundaries all while keeping their prices low for potential new shooter/hunter hobbyists.
You might be pleased to know that the Monstrum Tactical 3×30 Compact Riflescope is a fantastic entry-level ACOG alternative!
It gives the performance of a high-end ACOG scope while staying within a low $100 level.
The Monstrum riflescope, despite coming in at an affordable price, comes with its own glass range finder reticle with its own range finder markings. This sure comes in handy in variable ranges, especially when out hunting.
The reticle is convertible from red/green t-dot with adjustable brightness levels to better suit your environmental illumination levels.
Despite its price, I’ve found that it doesn’t provide a low-quality reticle view.
This compact scope is shockproof, waterproof, and fog-proof, as one of the best ACOG clones and alternatives one can only hope for.
It should also be able to take a beating considering most of the time you’ll be carrying your rifle on its sling. The ultra-lightweight aircraft-grade aluminum it uses should certainly help in that regard.
The Monstrum Tactical Ultra-Compact rifle scope comes in at just around 12 oz, making it one of the most lightweight scopes on our list.
I mean, the last thing you want is a brick hanging on top of your rifle.
When I had this on my AR, it was as if I barely had a sight mounted.
The lens is able to go as far as 4x fixed-magnification, far enough for most mid-to-long range uses while being able to take advantage of the wide field of view that ACOG clones and alternatives are known for.
It also measures a good 6-inches in length; it is small, durable, and housed in a strong aerospace alloy that can withstand punishment while remaining light.
It also has a fairly generous eye relief of about 3 inches, more than enough to avoid getting a black eye from the recoil
The Monstrum Tactical Ultra-Compact rifle scope is a sturdy and affordable rifle scope that brings you close to the Trijicon ACOG experience.
It includes a range finding and bullet drop compensation reticle, but these markings may prove distracting to some users, especially hunters
Still, this compact scope remains incredibly clear and accurate, able to keep zeroed in for plenty of uses so that you don’t have to worry about your scope losing its balance on a trip.
The fact it comes in at just shy of $100 is just one more reason that to make this one of the top ACOG alternatives on the market.
- Affordable price point
- Adjustable reticle and brightness
- Stays accurate over hundreds of rounds
- Has its own range finder reticle
- Range finder may not be suited for everyone
5. Wipboten Rifle Scope 4×32 True Fiber Red Illuminated Crosshair BDC Riflescope
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The Wipboten True Fiber Red Illuminated rifle scope is probably the best ACOG clone for a budget as it comes closest to the Trijicon ACOG for about a fraction of the price.
The reason why the Wipboten True Fiber Red Illuminated rifle scope stands out amongst other affordable ACOG clones and alternatives is due to their usage of actual fiber optic illumination for daytime brightness mitigation.
For those of you who may not know, Trijicon themselves have a useful guide which breaks down like this:
“A fiber optic is a thin, transparent fiber that is used to transmit light. The true fiber optic collects available light and concentrates the light transmission at the end of the fiber to illuminate the reticle.”
So not only are you getting a clone of a Trijicon feature, but you also get to save by using natural light instead of an AA battery in your scope. Two wins, great!
Regarding durability, the Wipboten comes with your suite of rugged features, such as an aluminum alloy housing and scope body that is fog-proof, shockproof, and water-resistant.
You’ll be able to get water on your gun but I doubt you want to scuba-dive with the whole thing.
If you’re crossing a river and your scope gets splashed on, however, it should be fine.
The aircraft-grade aluminum alloy body keeps this Red Illuminated scope lightweight enough to mount on your rifle without worrying about any added encumbrance.
It’s a simple mounting that doesn’t include any additional railing, but it really doesn’t need to when considering its already very low price point.
You’ll be able to get a 4x fixed-magnification as well as a 32mm objective lens. A large field of view is just what you need with an eye relief at 2.75 to lessen your chances of scope-eye.
The Wipboten, despite not having more web presence, is a good scope for users who don’t want to rely so much on battery power for illumination.
The generous eye relief is also good for those who want to keep from getting injured while switching targets quickly.
It also comes in at just north of $140, well within a reasonable price range.
If anything, its no-frills approach to design should entice some shooters out there, but also alienate others. If you’re a no-frills kind of guy, maybe the Wipboten riflescope is the budget scope for you.
- Affordable and battery-free
- Includes fiber-optic illumination
- Good magnification and eye relief distance
- Does not require AA battery
- The reticle and brightness levels are not adjustable
- Not water-proof
6. Terminus Optics 4×32 Chevron Reticle Red Fiber Riflescope
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The Terminus Optics Scope is, admittedly, a bit hard to pinpoint in terms of its origins online. It’s similar to a lot of the more locally manufactured gun accessories.
Given all that, their Optics 4×32 Chevron Reticle Red Fiber Riflescope still finds its way to my buying guide for the best ACOG clone due to its all-purpose capabilities as well as its fiber optics.
Terminus Optics has a great rugged construction that’s made of an aircraft-grade aluminum alloy.
It also maintains a multi-coated lens, offering the standard requirements of fog-proof, water-proof, shock-proof, and just generally weather-proof.
Similar to the Trijicon ACOG clone, the Terminus Optics 4×32 Riflescop uses fiber optics to collect ambient light from your surroundings to power its chevron reticle.
You won’t need to worry about battery life as this battery-free illuminated reticle operates fully on this captured light.
I’ve found it to work EXCELLENTLY during the day!
The chevron reticle is an interesting choice here, and Trijicon explains it best with their comparison guide of the different reticle types. Basically, a Chevron Reticle is:
It’s what the military uses – it looks like an upside-down V. Tricjicon calls the military version the “RCO” but it’s really just the same as the regular chevron.
So you get the reticle that the military most uses, which should entertain some of you guys going for the completely authentic look.
What’s interesting is that the TA51 mount, a variant used for Picatinny rail systems (a popular mount system for gun accessories), can be switched out for other rail systems (like the NATO rail system or Dovetail scope bases).
The Terminus Optics has a narrower space for short eye relief, coming at just 1.5 inches, so be careful when using this scope as it takes a bit of a closer look to get an accurate view.
The scope can be adjusted to 33 feet, giving you a comfortable field of view at 100 yards.
It’s a relatively light scope, something we want from ACOG alternatives, despite its rugged and durable metal body.
Terminus has made a solid contender for a reliable ACOG replica that uses fiber optics instead of traditional batteries.
Though this also means that in areas with low light, you may not expect strong brightness on your reticle as well.
Still, it is a fantastic multi-coated lens and parallax-free scope that keeps you accurate with windage and elevation markers.
Pick one up if you’re keen to see how this ACOG alternative will fare for you.
If you want something with more generous eye relief, you might want to choose another model.
- Fiber-optic powered brightness means no battery life management
- Unique chevron reticle
- Lightweight and durable
- Multi-coated scope
- Narrow eye relief allowance
7. Crushunt 4×32 Red Chevron Glass Etched Reticle Riflescope
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Crushunt is another independent brand mostly found online on large e-commerce websites like eBay and Amazon.
They cater to different recreational shooters and hunters out there and are particularly well-liked for their adherence and similarity to top-of-the-line gun accessories.
Their Crushunt 4×32 Red Chevron Etched Glass reticle rifle scope is their take on an ACOG clone, providing great 4x magnification as well as fiber optics for their reticle illumination.
Clarity and accuracy are key features to look for in any ACOG clone buying guide!
Crushunt’s Chevron ACOG clone is a FANTASTIC entry with its etched chevron reticle, proving accurate and stable target acquisition in different situations.
It’s also able to provide clear and bright daytime shooting due to the illuminated reticle powered by the fiber source collecting ambient light.
In dim light scenarios, the crosshairs remain visible so you don’t need to worry about losing visibility due to the fiber source not being able to collect light.
Like all the ACOG-type scopes on this list, the Crushunt is durable in its construction, keeping it water-proof, shock-proof, fog-proof, and weather-proof.
Just keep in mind this is still an ACOG clone, so any deliberate damage may cause actual dents to the rifle scope.
The Crushunt 4×42 rifle scope has an eye relief distance of roughly 1.5 inches. Not the most generous, similar to the Terminus rifle scope, but still enough for an experienced shooter.
The 4x magnification should give you a wide field of view at around 100 yards.
Just keep in mind this is a fixed magnification, so you may need to switch to a side red dot sight if ever you find yourself in sudden changes of the focal distance.
Crushunt, like Terminus, is one of those American-made brands that deliver the performance standard Trijicon ACOG scopes without breaking the bank.
If you want more options for fiber optic ACOG clones, the Crushunt is as solid a choice as they come.
Though it may not be using tritium, at least you don’t need to worry about battery life or illumination management. The reticle illumination on this model is superb.
It may be an option useful for some, but if you do most of your shooting in the daytime, you won’t have much to worry about.
- Fiber-sourced illumination powered red dot reticle
- 4x magnification gives great FOV over 100 yards
- Reliable, fast target acquisition due to etched reticle
- Adequate eye relief distance
- Long battery life
- No brightness management
- May have brightness issues in dim light scenarios
Why Use an ACOG Scope?
You may have heard the term ACOG scope before, but have you ever really delved into the history of the original ACOG scopes?
What Is Trijicon?
Well, to start, Trijicon, the main and original manufacturer of the advanced combat optical gunsight (ACOG) scope, was created by Glyn Bindon.
Glyn introduced an aiming technique called the “Bindon Aiming Concept”, which essentially keeps both eyes open while aiming down the sights.
Since then, Trijicon has been manufacturing their original Trijicon ACOG scopes, most of which use fiber optics and the tritium isotope instead of relying on the battery life of reticle illumination.
This Trijicon optic comes in a variety of shapes and specifications, as well as options to switch reticle shapes and colors (red/green being common color modes to switch between).
Because the Trijicon ACOG scope is so advanced, they happen to sell this Trijicon optic at relatively high prices, keeping most uses to high-end military and specialized police forces.
What Is the “Bindon Aiming Concept”?
Traditional scopes usually require the shooter to keep their non-aiming eye closed so they can focus on target acquisition.
With ACOG scopes, however, you have the ability to keep both eyes open for better situational awareness.
How the lens is formed allows you to quickly shift focus from your dominant aiming eye to your auxiliary awareness eye, keeping you safer in dangerous scenarios.
I particularly like multi-coated lenses for advanced combat optical gunsights because they offer more protection and are more durable.
Because of this open-eye aiming concept, the scope generally has a pretty wide eye relief space, going as far as 3 inches with some variants, which is great and comfortable for precise target shooting.
Even if the real Trijicon ACOG scope is out of your price range, you can at least find other similar riflescopes in the market that can deliver the same experience that the Trijicon ACOG battle scope can give.
My top pick in this best ACOG clones and alternatives list is the Vortex Optics Spitfire 3x Prism Scope because of its undeniable features and qualities.
But if you’re on a tight budget, then the Ozark Armament 4x BDC Illuminated Reticle Rifle Scope is another good choice.
FINAL TIP: If you’re looking for scope mounts for your AR15, you can also read my article on the Best AR15 Scope Mounts for some options.
CHANGELOG: May 6, 2022 - Updated product links, made minor updates to content, updated article title October 1, 2021 - Marked 2 products as discontinued/unavailable, added new product link options September 17, 2021 - Reviewed and updated article links, updated article title, marked 3 products as discontinued/unavailable