Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle Review

The Truth About Using the Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle with Flat Top Adapter

The Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle with Flat Top Adapter is a combat-proven optic designed for rapid target acquisition and exceptional clarity in various lighting conditions. Built by Trijicon, this ACOG (Advanced Combat Optical Gunsight) features a fixed 3.5x magnification, a 35mm objective lens, and a unique chevron reticle calibrated for .223/5.56mm rifles. Its battery-free illumination system, utilizing fiber optics and tritium, makes it a reliable choice for serious shooters and tactical professionals.

My journey to the Trijicon TA11F-A ACOG stemmed from a need for a robust, always-on optic for my patrol rifle. I was tired of constantly replacing batteries in my red dot sights and wanted something that offered both close-quarters speed and reasonable mid-range precision. The ACOG’s reputation for durability and its Bindon Aiming Concept (BAC), promising both-eyes-open shooting, piqued my interest.

Unboxing the TA11F-A, I was immediately impressed by its ruggedness. The forged aluminum housing felt incredibly solid, and the glass was crystal clear. It felt like a serious piece of kit, reassuringly weighty without being cumbersome.

I had considered the EOTech EXPS3 and Aimpoint PRO before settling on the ACOG. While those are excellent options for close-quarters work, they lack the ACOG’s magnification and bullet drop compensation, making it better suited for diverse scenarios. My first impression was one of excitement mixed with a touch of intimidation; this wasn’t just another optic, it was a tool designed for serious work.

Real-World Testing: Putting Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle with Flat Top Adapter to the Test

First Use Experience

My initial testing took place at my local range, focusing on targets from 25 to 300 yards. The amber chevron reticle was incredibly easy to pick up, even in bright sunlight. I also tested it during a rainy afternoon, and the clarity remained excellent.

The ACOG proved intuitive to use; the Bindon Aiming Concept worked as advertised, allowing me to keep both eyes open for enhanced situational awareness. Zeroing was straightforward using the precise and tactile turrets, and the TA51 flattop adapter provided a secure and stable mounting platform on my AR-15. My only initial concern was the somewhat short eye relief, requiring a consistent cheek weld for optimal sight picture.

Extended Use & Reliability

After several months of regular use, the Trijicon TA11F-A ACOG has proven to be incredibly robust. It has endured numerous range sessions, a few back-country hikes, and even a tactical training course in less-than-ideal weather.

There are no signs of wear and tear beyond some minor cosmetic scratches on the housing. Cleaning is simple; a quick wipe with a lens cloth keeps the glass pristine. Compared to my previous experiences with battery-powered optics, the ACOG’s always-on illumination and exceptional durability are a breath of fresh air.

Breaking Down the Features of Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle with Flat Top Adapter

Specifications

The Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle with Flat Top Adapter boasts the following specifications:

• Objective Lens Diameter: 35 mm. This large objective lens gathers plenty of light, crucial for low-light performance.
• Magnification: 3.5x. A versatile magnification level, offering a good balance between close-quarters speed and mid-range precision.
• Exit Pupil: 10 mm. Provides a generous amount of light to the eye, aiding in rapid target acquisition.
• Finish: Matte. Reduces glare and reflections, crucial in tactical situations.
• Field of View: 28.9 ft at 100 yds. Offers a wide field of view, enhancing situational awareness.
• Eye Relief: 2.4 in. A somewhat short eye relief, requiring a consistent cheek weld.
• Weight: 14 oz. Lightweight enough for comfortable carry, yet robust enough to withstand abuse.
• Adjustment Click Value: 1/4 MOA. Allows for precise zeroing and adjustments.
• Length: 8 in. Compact design minimizes bulk on the rifle.
• Illumination Type: Fiber Optics/Tritium. Provides battery-free, always-on illumination.
• Fabric/Material: Forged Aluminum. Ensures exceptional durability and resistance to the elements.
• Shockproof: Yes. Proven to withstand the rigors of combat and harsh use.
• Fogproof: Yes. Dry nitrogen-filled to prevent fogging in extreme conditions.
• Attachment Type: TA51. Mounts securely to flattop AR-15 rifles.

These specifications are significant because they contribute directly to the optic’s performance and usability. The fixed magnification strikes a balance between CQB and mid-range engagements. The robust construction guarantees reliable operation in any environment.

Performance & Functionality

The Trijicon TA11F-A ACOG performs exceptionally well in its intended role. The clarity of the glass is outstanding, and the amber chevron reticle is easy to acquire in various lighting conditions.

Its bullet drop compensation is accurate for .223/5.56mm rounds, making it simple to engage targets at extended ranges. The only potential weakness is the short eye relief, which may require some adjustment for shooters accustomed to more forgiving optics. The ACOG meets and exceeds expectations, delivering on its promise of rugged reliability and combat-ready performance.

Design & Ergonomics

The build quality of the Trijicon TA11F-A ACOG is second to none. The forged aluminum housing feels incredibly solid, and the matte finish provides a non-reflective surface.

Its weight is well-balanced, and the compact design doesn’t add unnecessary bulk to the rifle. There is a slight learning curve associated with the Bindon Aiming Concept and the short eye relief, but it quickly becomes intuitive with practice.

Durability & Maintenance

The Trijicon TA11F-A ACOG is built to last a lifetime. Its robust construction and nitrogen-filled housing ensure reliable performance in even the harshest conditions.

Maintenance is minimal; a quick cleaning of the lens is all that’s typically required. The tritium illumination is guaranteed for 12 years, providing years of reliable service without the need for batteries.

Accessories and Customization Options

The Trijicon TA11F-A ACOG comes standard with the TA51 flattop adapter, allowing for easy mounting on AR-15 rifles. While the ACOG itself doesn’t offer extensive customization options, there are numerous aftermarket accessories available.

These include lens protectors, killFlash devices, and alternative mounting solutions. The ACOG is also compatible with various backup iron sights, providing redundancy in case of optic failure.

Pros and Cons of Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle with Flat Top Adapter

Pros

• Exceptional Durability: The forged aluminum housing and robust construction ensure it can withstand harsh conditions and heavy use.
• Battery-Free Illumination: The tritium/fiber optic reticle provides always-on illumination without the need for batteries.
• Outstanding Clarity: The high-quality glass and multi-coated lenses offer a crisp, clear sight picture.
• Accurate Bullet Drop Compensation: The chevron reticle is calibrated for .223/5.56mm rounds, allowing for precise shots at extended ranges.
• Combat-Proven Design: The ACOG has been used extensively by military and law enforcement, proving its reliability in real-world scenarios.

Cons

• Short Eye Relief: Requires a consistent cheek weld for optimal sight picture, which may be uncomfortable for some users.
• Price: The ACOG is a significant investment compared to other optics.

Who Should Buy Trijicon TA11F-A ACOG 3.5×35 Rifle Scope – Chevron BAC .223 Flattop Reticle with Flat Top Adapter?