The Trijicon 100149 ACOG (Advanced Combat Optical Gunsight) 3.5x35mm riflescope with its illuminated Green Chevron .223/5.56 BDC Reticle stands as a testament to battle-proven durability, unmatched reliability, and exceptional optical performance. This fixed-power, compact optic is engineered to meet the stringent demands of military operations, competitive shooting, and serious tactical applications, providing a robust and intuitive aiming solution in virtually any environment. For anyone seeking an optic that can withstand the harshest conditions while delivering lightning-fast target acquisition and crystal-clear imagery, the Trijicon ACOG is an unparalleled choice.

Why Choose the Trijicon ACOG 3.5x35mm?

The decision to invest in a premium optic often comes down to a few critical factors: performance, durability, and ease of use. The Trijicon ACOG excels in all these areas, making it a preferred choice for professionals and enthusiasts alike. This optic is not just a tool; it’s a commitment to precision and resilience.

• Unrivaled Durability and Reliability: Built from a rugged, aircraft-grade aluminum alloy housing with a black hardcoat anodized finish, the ACOG is designed to be virtually indestructible. It's rigorously tested to withstand the extreme recoil of calibers from .22LR all the way up to .50 BMG, ensuring it holds zero under punishing conditions. This optic doesn't just meet, but far exceeds, U.S. military drop test requirements, meaning it's built to survive impacts and rough handling that would sideline lesser scopes. Its fogproof and waterproof integrity is maintained through nitrogen-filling, preventing internal fogging even with rapid temperature changes or submersion. This makes it an ideal companion for operations in any climate or weather condition, from arid deserts to humid jungles and freezing tundras. This level of environmental resistance is what sets the ACOG apart, providing peace of mind in mission-critical scenarios or demanding competitive circuits.
• Battery-Free Illuminated Reticle: One of the most revolutionary features of the Trijicon ACOG is its innovative dual-illumination system. The Green Chevron reticle is illuminated without the need for batteries, relying on a combination of a fiber optic collector and a tritium phosphor lamp.
  • Fiber Optic: During daylight or in well-lit conditions, ambient light is gathered by the fiber optic element, automatically brightening the reticle. This ensures optimal visibility without the need for manual adjustments or power sources. The reticle's brightness dynamically adjusts to the ambient light, preventing washout in bright sunlight or being too dim in shady areas.
  • Tritium Phosphor Lamp: In low-light or no-light situations, the self-luminous tritium takes over, providing a clear, crisp glow for the reticle. This continuous, dependable illumination means you'll never be caught without a visible aiming point due to dead batteries – a critical advantage in high-stakes scenarios where power sources are unreliable or unavailable. The Green Chevron is chosen for its high contrast against various backgrounds and excellent visibility for the human eye, reducing eye strain and improving target acquisition speed. The tritium has a useful life of 10-15 years, providing long-term, maintenance-free illumination.
• Fixed Power Magnification (3.5x): The 3.5x fixed magnification of this ACOG model strikes an ideal balance between field of view and target identification. While some users might prefer variable power scopes, fixed power optics offer distinct advantages in tactical and fast-paced environments:
  • Simplicity and Speed: There’s no need to adjust magnification, allowing for faster target acquisition and engagement, especially beneficial in dynamic environments like 3-Gun competitions or close-to-medium range tactical engagements. This reduces decision-making time under pressure.
  • Enhanced Durability: Fewer moving parts mean greater resistance to impact and a reduced chance of mechanical failure compared to complex variable-power optics. This simplicity contributes directly to the ACOG’s legendary ruggedness.
  • Consistent Eye Relief and Exit Pupil: Predictable sight picture and a generous eye relief of 2.39 inches make it easier to acquire a target quickly and consistently, even from non-ideal shooting positions. The large 9.91mm exit pupil further enhances rapid target acquisition and comfort.
  • Bindon Aiming Concept (BAC): The ACOG's design, particularly the 3.5x fixed power and illuminated reticle, facilitates the revolutionary Bindon Aiming Concept. This technique allows shooters to use both eyes open, maintaining peripheral vision and situational awareness while simultaneously focusing on the magnified target image through the dominant eye. The illuminated reticle, when viewed with both eyes, appears to float on the target, making for a seamless transition between close-quarters and medium-range engagements and enhancing situational awareness.
• Ballistic Drop Compensating (BDC) Reticle for .223/5.56: The integrated Ballistic Drop Compensating (BDC) reticle is specifically calibrated for common military and civilian .223/5.56 NATO cartridges. This reticle features horizontal stadia lines below the main aiming point, corresponding to various ranges. Once the rifle is zeroed at a specific distance (e.g., 100 or 200 yards), the shooter can then use the appropriate stadia line for targets at 300, 400, 500 yards, and beyond, without needing to manually adjust elevation. This significantly speeds up engagements at varying distances, making it an invaluable tool for precision and efficiency in dynamic shooting scenarios. The chevron shape itself offers a precise aiming point that naturally draws the eye to the center, combining speed with accuracy. This design allows for rapid shifts in engagement distance without complex calculations or turret adjustments, crucial in fast-moving tactical or competitive situations.

Mastering Your Environment with the Trijicon ACOG

This Trijicon ACOG model isn't just a scope; it's a force multiplier for a variety of firearms platforms, most notably AR-15s and other modern sporting rifles chambered in .223/5.56. Its compact size (8 inches in length) and relatively light weight (14 oz) ensure it doesn't overburden your rifle, maintaining balance and maneuverability.

• Superb Optical Clarity: Equipped with multi-coated lenses, the ACOG maximizes light transmission, providing a bright, clear, and high-contrast image even in challenging lighting conditions. This optical excellence is crucial for target identification and shot placement. The generous 9.91mm exit pupil diameter further enhances low-light performance and makes it easier to acquire a full sight picture quickly, reducing the "blackout" effect common with scopes that have smaller exit pupils. The edge-to-edge clarity ensures a comprehensive view of your target environment.
• Precise Adjustments: The 3.5x35mm ACOG features precise windage and elevation adjustments, with 4 clicks per inch at 100 yards. This allows for fine-tuning your zero and making accurate corrections. The positive, tactile clicks ensure confident adjustments even in stressful situations. The included lanyard assembly for adjuster caps ensures that these crucial components are never lost in the field, a small but significant detail that underscores Trijicon's attention to real-world use.

Who Benefits Most from the Trijicon ACOG 100149?

The Trijicon ACOG 3.5x35mm is an ideal optic for a diverse range of users who demand peak performance and unwavering reliability from their equipment.

• Competitive Shooters (e.g., 3-Gun): The rapid target acquisition, wide field of view (28.90 ft @ 100 yds), and BDC reticle make it exceptionally effective for multi-target engagements and transitions across varying distances common in competitive shooting. The Bindon Aiming Concept is particularly advantageous here, allowing for seamless transitions from close-range targets to those at medium distances without breaking concentration.
• Law Enforcement and Military Personnel: Its battle-proven design, extreme durability, and reliable battery-free illumination make it a trusted optic for patrol rifles, entry teams, and frontline operations where failure is not an option. It provides a robust and intuitive aiming solution that can withstand the rigors of professional use and perform consistently in diverse and unpredictable environments.
• Home Defense and Tactical Enthusiasts: For individuals who prioritize a robust, reliable, and easy-to-use optic for personal defense or tactical training, the ACOG offers peace of mind knowing it will perform when needed most. Its fixed power and intuitive reticle simplify operation under stress, making it an excellent choice for a primary defensive rifle.
• Hunters in Certain Scenarios: While primarily a tactical optic, its optical clarity, fixed magnification, and rugged construction can also be suitable for hunting in areas where medium-range engagements are common and extreme durability is paramount, such as dangerous game hunting or expeditions in challenging terrain.

What's Included and Why It Matters

The Trijicon ACOG 100149 comes as a complete package, ensuring you have everything you need to get started and maintain your investment:

• TA51 Thumbscrew Flattop Adaptor: This robust mount is specifically designed for Weaver or Picatinny rails, providing a secure and repeatable attachment to your rifle. Its thumbscrew design allows for easy installation and removal without the need for additional tools, making it convenient for cleaning or transport.
• 3.5x35 Scopecoat: A custom-fit protective cover that shields your ACOG from dust, scratches, and light impacts when not in use, significantly extending the lifespan and preserving the finish of your investment.
• LENSPEN: A convenient two-sided tool for safely cleaning the objective and ocular lenses. One end features a soft brush for removing loose debris, while the other has a special cleaning tip for fingerprints and smudges, maintaining optimal optical clarity without damaging the delicate lens coatings.
• Lanyard Assembly for Adjuster Caps: Small but significant, this prevents the loss of your windage and elevation caps, especially critical in field conditions or under stress where small parts can easily be misplaced.
• Trijicon Logo Sticker: A small token of brand pride, allowing you to showcase your commitment to quality optics.
• ACOG Manual and Warranty Card: Essential documentation for understanding your optic's features, proper use, maintenance, and warranty information, ensuring long-term support and peace of mind from Trijicon's renowned customer service.

Maintenance and Care for Your Trijicon ACOG

To ensure your Trijicon ACOG continues to perform at its peak for decades, a few simple maintenance practices are recommended:

1. Lens Cleaning: Always use the included LENSPEN or a soft, lint-free cloth specifically designed for optics. For stubborn smudges, a small amount of high-quality lens cleaning fluid can be applied to the cloth, never directly to the lens, to avoid seepage into the optic's internal components.
2. Exterior Cleaning: Wipe down the scope's exterior with a damp cloth to remove dirt, dust, or residue. For tougher grime, a mild soap solution can be used, but always ensure to rinse thoroughly and dry completely. Avoid harsh chemical cleaners, which can damage the anodized finish.
3. Storage: When not in use, store the ACOG in a cool, dry place, ideally with the Scopecoat in place, to protect it from environmental elements, dust accumulation, and accidental physical damage.
4. Mounting Checks: Periodically check the tightness of the TA51 mount screws to ensure the optic remains securely zeroed. Environmental changes or recoil can sometimes loosen mounts over time. A properly torqued mount is crucial for maintaining accuracy.

Why Trijicon Remains a Leader in Optics

Trijicon has cemented its reputation as a pioneer and leader in advanced aiming systems. Their commitment to innovation, quality, and military-grade performance has made their products, particularly the ACOG line, an industry standard. When you choose a Trijicon ACOG, you're not just buying a scope; you're investing in a legacy of reliability and a product trusted by elite forces worldwide. Their dedication to self-luminous technology, rugged construction, and user-centric design continues to push the boundaries of what's possible in rifle optics, making them a consistent choice for those who demand the absolute best.

For those looking to acquire this exceptional piece of engineering, the Trijicon ACOG 3.5x35mm, identified by UPC: 719307303461 and MPN: 100149, is available at DEGuns, a trusted source for high-quality firearms and accessories. Choosing DEGuns ensures you receive genuine products and expert support for your investment.

Feature	Specification
Brand	Trijicon
Model	ACOG 3.5x35mm
Magnification	3.5x Fixed
Reticle	Illuminated Green Chevron .223 / 5.56 BDC
Illumination	Tritium & Fiber Optic (Battery-Free)
Finish	Black Hardcoat Anodized
Material	Forged Aluminum Housing
Firearm Type	Rifle (Optimized for .223/5.56 Platforms)
Mount Type	ACOG Flattop Mount (TA51 Included)
Field of View	28.90 ft @ 100 yds
Adjustment Size	4 Clicks per Inch @ 100 yds
Objective Lens	35mm
Eye Relief	2.39 inches
Length	8 inches
Weight	14 ounces
Exit Pupil	9.91mm
Optic Coating	Multi-Coated
Durability	Fogproof, Waterproof, Shock-Resistant, .50 BMG Rated
Includes	TA51 Flattop Mount, Scopecoat, LENSPEN, Lanyard Assembly, Sticker, Manual, Warranty
SKU (Internal)	77781
MPN	100149
UPC	719307303461