First Thoughts on the Trijicon ACOG ECOS Combo 4x 32mm Flat Dark Earth Rifle Scope – 1.50″ Eye Relief, 36.80 ft @ 100 yds Field of View, 4x Fixed Magnification, 6.20″ Length
The Trijicon ACOG ECOS Combo is a premium optic designed for shooters who demand versatility and uncompromising performance in any situation. This isn’t just a rifle scope; it’s a complete sighting system that combines the proven Trijicon ACOG with a miniature red dot sight, offering both magnified and unmagnified aiming solutions. It promises rapid target acquisition at close quarters alongside the precision needed for longer-range engagements, all wrapped in a rugged, combat-ready package.
I’ve always valued adaptability in my gear, especially when it comes to optics. The idea of seamlessly transitioning between CQB and longer-range shots with a single platform was incredibly appealing. I was looking for a sight that could handle anything from fast-paced drills to accurately engaging targets at several hundred yards.
The Trijicon ACOG ECOS Combo arrived in a meticulously organized box. The Flat Dark Earth finish looked fantastic, and the ACOG felt incredibly solid in my hands. The inclusion of the RMR Type 2 and backup iron sights further cemented the impression of a complete, ready-to-deploy system.
Before settling on the Trijicon ACOG ECOS Combo, I considered the EOTech EXPS3 with a G33 magnifier and the Aimpoint CompM5 with a 3X-C magnifier. The EOTech was too bulky, and I’ve had battery life concerns in the past. The Aimpoint was a great option, but the integrated RMR on the ACOG ECOS seemed more streamlined and robust for my specific applications.
My first impression was one of excitement, tinged with a healthy dose of anticipation. Could this optic truly live up to the hype and justify its considerable price tag? Only extensive testing would reveal the answer.
Real-World Testing: Putting Trijicon ACOG ECOS Combo 4x 32mm Flat Dark Earth Rifle Scope – 1.50″ Eye Relief, 36.80 ft @ 100 yds Field of View, 4x Fixed Magnification, 6.20″ Length to the Test
First Use Experience
My initial testing took place at a local shooting range, simulating various scenarios from close-quarters drills to engaging targets out to 300 yards. I mounted the ACOG ECOS on my AR-15 platform chambered in .223/5.56. The range was relatively dry, with sunny conditions and a light breeze.
The transition between the ACOG and the RMR was surprisingly smooth and intuitive. Close-range target acquisition with the RMR was incredibly fast. Switching to the ACOG for longer shots provided a clear and precise sight picture.
The Trijicon ACOG’s legendary reputation for ruggedness was immediately apparent. I did experience a slight learning curve with the Bindon Aiming Concept (BAC), where you keep both eyes open while using the magnified optic, but it became more natural with practice.
Extended Use & Reliability
After several months of consistent use, the ACOG ECOS has proven to be an incredibly reliable and durable optic. I’ve used it in various conditions, including a rainy range day and a dusty training environment. It performed flawlessly in all situations.
The Flat Dark Earth finish shows minimal signs of wear, even after being bumped around in gun cases and exposed to the elements. Cleaning is straightforward, and the optic requires very little maintenance beyond wiping down the lenses.
I have used other optics in the past, but the Trijicon ACOG ECOS Combo outperforms them in terms of its dual-sighting system, durability, and overall versatility. It’s a significant upgrade over a standard red dot or magnified optic alone.
Breaking Down the Features of Trijicon ACOG ECOS Combo 4x 32mm Flat Dark Earth Rifle Scope – 1.50″ Eye Relief, 36.80 ft @ 100 yds Field of View, 4x Fixed Magnification, 6.20″ Length
Specifications
Magnification: 4x Fixed. The fixed 4x magnification provides a good balance between field of view and target identification at medium ranges.
Objective Size: 32mm. This allows for sufficient light gathering for a bright and clear image in various lighting conditions.
Eye Relief: 1.50 inches. The relatively short eye relief can be a challenge for some shooters, requiring a consistent cheek weld for optimal performance.
Field of View: 36.80 ft @ 100 yds. This provides a decent field of view, enabling faster target acquisition and situational awareness.
Length: 6.20 inches. The compact size helps to minimize added weight and bulk on your rifle.
Weight: 15 oz. While not the lightest optic, the ruggedness and features justify the weight.
Illumination Source: Fiber Optics & Tritium. This provides a bright reticle in daylight and low-light conditions without batteries.
Reticle Pattern: Crosshair. The crosshair reticle allows for precise aiming at longer distances.
Day Reticle Color: Green. The green reticle is highly visible against a variety of backgrounds in daylight.
Night Reticle Color: Green. Green is also effective in low-light and nighttime scenarios.
Calibration: 0.223. This ACOG is calibrated for the ballistic characteristics of .223/5.56 ammunition.
Bindon Aiming Concept (BAC): Yes. This allows for both-eyes-open shooting, improving situational awareness and target acquisition speed.
Adjustment @ 100 yards: 2 clicks/in. Provides precise adjustments for windage and elevation.
Mount: Quick Release. Allows for rapid attachment and detachment from the rifle.
Housing Material: Forged Aluminum. Provides exceptional durability and resistance to harsh conditions.
Performance & Functionality
The Trijicon ACOG ECOS Combo excels in both close-quarters and medium-range engagements. The RMR Type 2 provides incredibly fast target acquisition for CQB scenarios. Switching to the 4x ACOG allows for precise shots at targets out to 300-500 yards, depending on skill level.
The primary strength is the dual-sighting system, offering both magnified and unmagnified options. The main weakness is the short eye relief, which requires a consistent cheek weld. The optic meets, and arguably exceeds, my expectations for a versatile and durable combat optic.
Design & Ergonomics
The forged aluminum housing feels incredibly robust and inspires confidence. The Flat Dark Earth finish looks great and provides a degree of camouflage. The compact size and relatively low weight (for a dual-optic system) make it comfortable to use on a variety of rifles.
The ACOG is incredibly user-friendly, requiring minimal setup and adjustment. The RMR is intuitive, and the ACOG’s external adjusters are easy to use, even with gloves. The Trijicon ACOG does have a learning curve, particularly when adapting to the BAC (Bindon Aiming Concept) but it is very manageable.
Durability & Maintenance
The Trijicon ACOG ECOS Combo is built to last. The forged aluminum housing and robust construction make it incredibly durable. Trijicon’s reputation for producing bomb-proof optics is well-earned.
Maintenance is minimal. Wiping down the lenses with a lens pen (included) and occasionally cleaning the housing is all that’s required. The optic is waterproof to 11 meters, providing peace of mind in wet conditions.
Accessories and Customization Options
The Trijicon ACOG ECOS Combo includes several accessories:
- 3.25 MOA RMR Type 2 LED Red Dot: This provides a fast and accurate CQB sighting solution.
- Trijicon Quick Release Mount (AC12033): Allows for rapid attachment and detachment.
- Set of backup Iron Sights: Provides a backup sighting system in case of optic failure.
- LENSPEN (TA56): For cleaning the lenses.
- Lanyard Assembly for Adjuster Caps (TA71E): Prevents loss of the windage and elevation adjustment caps.
- Trijicon Logo Sticker (PR15): Because who doesn’t love a logo sticker?
- ACOG Manual: Provides detailed instructions and information.
Aftermarket customization is limited due to the integrated nature of the ECOS system. However, different RMR models can be mounted, and various quick-release mounts are available from different manufacturers.
Pros and Cons of Trijicon ACOG ECOS Combo 4x 32mm Flat Dark Earth Rifle Scope – 1.50″ Eye Relief, 36.80 ft @ 100 yds Field of View, 4x Fixed Magnification, 6.20″ Length
Pros
- Dual-Sighting System: Seamlessly transitions between CQB and medium-range engagements.
- Exceptional Durability: Built to withstand harsh conditions and heavy use.
- Battery-Free Illumination: Fiber optics and tritium provide reliable reticle illumination without batteries.
- Quick Target Acquisition: The RMR Type 2 allows for rapid target acquisition in close quarters.
- Precise Aiming: The ACOG provides a clear and accurate sight picture for longer-range shots.
Cons
- Short Eye Relief: Requires a consistent cheek weld for optimal performance.
- High Price Point: Significant investment compared to other optic options.
Who Should Buy Trijicon ACOG ECOS Combo 4x 32mm Flat Dark Earth Rifle Scope – 1.50″ Eye Relief, 36.80 ft @ 100 yds Field of View, 4x Fixed Magnification, 6.20″ Length?
The Trijicon ACOG ECOS Combo is perfect for:
- Tactical shooters who need a versatile optic for both CQB and longer-range engagements.
- Law enforcement professionals and military personnel who require a reliable and durable sighting system.
- Hunters who want a high-quality optic for medium-range hunting.
Who should skip this product?
- Shooters on a tight budget. There are more affordable optic options available.
- Those who require long eye relief. The ACOG’s short eye relief may be uncomfortable for some.
A must-have accessory is a quality cheek riser to ensure a consistent cheek weld and optimal eye relief. A weapon light is also recommended for low-light shooting scenarios.
Conclusion on Trijicon ACOG ECOS Combo 4x 32mm Flat Dark Earth Rifle Scope – 1.50″ Eye Relief, 36.80 ft @ 100 yds Field of View, 4x Fixed Magnification, 6.20″ Length
The Trijicon ACOG ECOS Combo is a top-tier optic that delivers exceptional performance and versatility. It’s a significant investment, but the dual-sighting system, rugged durability, and battery-free illumination make it well worth the price for those who demand the best. The ACOG ECOS Combo is truly a complete package.
The price is justified considering the quality of the optics, the included RMR, and the overall durability. It’s an investment in a sighting system that will likely outlast the rifle it’s mounted on.
I would highly recommend the Trijicon ACOG ECOS Combo to anyone looking for a versatile and reliable optic for both close-quarters and medium-range shooting. If you need a battle-proven optic that will perform flawlessly in any situation, the ACOG ECOS is the clear choice. Invest in your accuracy, invest in your peace of mind. Get yours today and experience the Trijicon difference.