Trijicon ACOG TA31-D-100288: The Ultimate 4x32 BAC Riflescope for Precision and Durability

Are you searching for an optic that offers unparalleled reliability, rapid target acquisition, and precise aiming in any lighting condition? Do you need a combat-proven riflescope trusted by military and law enforcement professionals worldwide? For discerning shooters, tactical enthusiasts, and professionals who demand a no-compromise solution for their AR-15 or tactical rifle, the Trijicon ACOG 4x32 BAC Riflescope (TA31-D-100288) stands as a beacon of optical excellence. This iconic fixed-power scope is engineered to tackle the most demanding environments, providing a decisive edge whether in a competitive shooting scenario, critical self-defense situation, or duty-bound operations.

Unpacking the Legendary Trijicon ACOG TA31-D-100288

The Trijicon ACOG (Advanced Combat Optical Gunsight) series has long been synonymous with ruggedness, clarity, and effectiveness on the battlefield. The TA31-D-100288 model, a highly sought-after variant, encapsulates all the core philosophies that make ACOG optics legendary. It's not just a scope; it's a battle-hardened instrument designed for rapid engagement and enduring performance.

Core Features That Define Excellence

What makes the Trijicon ACOG TA31-D-100288 the go-to choice for serious users? Its design integrates several key innovations that address critical shooting challenges.

• Dual-Illuminated Reticle: Always On, No Batteries Needed.

  One of the most defining characteristics of this ACOG is its revolutionary dual-illumination system. The reticle, specifically a vivid red chevron, is powered by a combination of fiber optics and tritium.

  • Fiber Optics: During daylight or in well-lit conditions, the fiber optic system automatically gathers ambient light, channeling it to illuminate the reticle brightly. This means your aiming point is always vibrant and highly visible, adapting seamlessly to changing light environments without manual adjustments.
  • Tritium: As light diminishes—whether at dawn, dusk, or in complete darkness—the self-contained tritium phosphor lamp takes over. Tritium provides a constant, maintenance-free glow, ensuring your reticle remains perfectly illuminated for precise aiming, even in zero-light scenarios. This "always on" functionality eliminates the need for batteries, a critical advantage in high-stakes situations where power sources might fail or be unavailable. This solves the common problem of battery dependence found in many illuminated optics, offering peace of mind and unwavering readiness.

• Bindon Aiming Concept (BAC): Shoot with Both Eyes Open.

  The TA31-D-100288 features Trijicon's patented Bindon Aiming Concept (BAC). This innovative aiming method allows the shooter to use both eyes open while aiming, providing a wider field of view and superior situational awareness. How does it work? By utilizing the bright, illuminated reticle and the human brain's ability to superimpose images, the BAC enables incredibly fast target acquisition. You simply focus on your target with both eyes, and the illuminated reticle appears crisply superimposed on your vision, allowing for extremely rapid engagement, particularly effective in dynamic or close-quarters combat (CQB) scenarios where speed is paramount.

• Precision Chevron Reticle with Bullet Drop Compensator (BDC).

  The reticle is a red chevron, known for its intuitive and precise aiming point. It is designed to be zeroed using the tip of the chevron at 100 meters. This provides a fine aiming point for precision shots. Below the main chevron, a Bullet Drop Compensator (BDC) is integrated, calibrated for the widely used M193 ammunition (5.56mm, 55-grain FMJ) fired from a 16-inch barrel.

  • Calibrated for Common Ammunition: This specific calibration makes the scope an ideal partner for the ubiquitous AR-15 platform, ensuring ballistic accuracy out to significant distances.
  • Extended Range Capability: The BDC markings extend out to 800 meters, providing precise holdover points for engaging targets at varying ranges without needing to manually adjust elevation. This feature simplifies long-range shooting, allowing for faster and more accurate follow-up shots.
  • Range Estimation Capability: The base of the chevron reticle has a width of 5.5 MOA, which conveniently subtends 19 inches at 300 meters. This clever design allows operators to quickly estimate the range to standard silhouette targets (such as a human torso) by bracketing them with the chevron's base, adding another layer of tactical utility.

• Unrivaled Durability and Reliability.

  Trijicon ACOG optics are legendary for their robust construction. The TA31-D-100288 is no exception. Encased in a forged 7075-T6 aircraft-grade aluminum alloy housing, it's designed to withstand extreme recoil, harsh environmental conditions, and rigorous field use. Each ACOG is rigorously tested to ensure:

  • Waterproof Performance: Submersible to significant depths, ensuring performance in wet conditions.
  • Fogproof Design: Nitrogen-filled to prevent internal fogging in fluctuating temperatures.
  • Shock Resistance: Built to absorb and dissipate impact, maintaining zero even after severe drops or impacts.

  This level of build quality guarantees that your optic will perform reliably when it matters most, maintaining its zero shot after shot, year after year.

Real-World Applications and User Scenarios

Who benefits most from the Trijicon ACOG TA31-D-100288, and in what situations does it truly shine?

• Military and Law Enforcement: The ACOG is a staple for tactical professionals. Its reliability, speed, and durability make it ideal for patrol, close-quarters combat, entry teams, and general-purpose rifle engagements. When lives are on the line, the ACOG's no-battery illumination and robust build are indispensable.
• Competitive Shooters (e.g., 3-Gun): For disciplines like 3-Gun, where rapid target transitions and engagements at varying distances are common, the ACOG's BAC and BDC reticle provide a distinct advantage. Its fixed 4x magnification offers a good balance for both intermediate range targets and quick, close-in shots.
• Home Defense and Self-Defense: In a critical home defense scenario, the ACOG's always-on illumination and intuitive reticle allow for immediate and decisive action, regardless of lighting conditions. Its 4x magnification aids in positive target identification at typical home defense distances while the BAC allows for peripheral vision retention.
• Tactical Training and Enthusiasts: For anyone serious about tactical shooting, the TA31-D-100288 provides an authentic, high-performance optic that mirrors what professionals use. It offers a premium training experience and instills confidence in your equipment.
• Hunters (where applicable): For hunting small to medium game where 5.56mm is an appropriate cartridge, the ACOG provides the necessary precision and quick target acquisition, especially in dense brush or low-light conditions.

Why Choose the ACOG TA31-D-100288?

Beyond its technical specifications, the Trijicon ACOG TA31-D-100288 offers several compelling benefits that make it a superior choice:

• Ultimate Reliability: No batteries to die, no electronics to fail. The dual-illumination system is inherently robust and always operational.
• Speed of Acquisition: The combination of BAC and the bright chevron reticle ensures you can get on target faster than ever before.
• Exceptional Clarity: Trijicon is known for its high-quality glass, providing a bright, clear, and distortion-free image, even in challenging lighting.
• Zero Retention: Its legendary durability means once zeroed, it stays zeroed, even after bumps, drops, or thousands of rounds. This significantly reduces downtime and increases shooter confidence.
• Simplicity and Effectiveness: There are no complex menus or settings. It's a "set it and forget it" optic designed for intuitive use under pressure.
• Proven Pedigree: With decades of service in some of the most demanding environments on Earth, the ACOG has earned its reputation as a battle-proven, mission-ready optic.

When evaluating optics, ask yourself: "How critical is unwavering performance?" If the answer is "extremely critical," then the Trijicon ACOG TA31-D-100288 provides that assurance. It's an investment in a piece of equipment that will serve you reliably for a lifetime.

Included in Your Package

The Trijicon ACOG TA31-D-100288 comes complete with essential accessories to get you started and ensure proper care:

• 1 Flattop Mount (TA51): This robust mount is specifically designed for Picatinny rails, ensuring a secure and stable attachment to your rifle.
• 1 4x32 Scopecoat (TA64): A protective cover to shield your ACOG from dust, scratches, and minor impacts when not in use or during transport.
• 1 LENSPEN® (TA56): A convenient tool for cleaning the scope's lenses, ensuring optimal clarity without damaging coatings.
• 1 Lanyard Assembly for Adjuster Caps: Keeps your windage and elevation caps secure and prevents loss in the field.
• 1 Trijicon Logo Sticker: Show your brand loyalty.
• 1 ACOG Manual: Comprehensive instructions for mounting, zeroing, and maintenance.
• 1 Warranty Card: Details Trijicon's limited lifetime warranty, providing peace of mind for your investment.

Experience the difference that true battle-proven engineering makes. The Trijicon ACOG 4x32 BAC Riflescope (TA31-D-100288) is available at DEGuns, your trusted source for high-quality firearms and accessories.

Technical Specifications

For those who delve into the details, here are the core specifications for the Trijicon ACOG TA31-D-100288:

Feature	Detail
Model	Trijicon ACOG TA31-D-100288
Magnification	4x Fixed
Objective Size	32mm
Reticle Type	Red Chevron with Bullet Drop Compensator (BDC)
Illumination	Dual Illuminated (Fiber Optics & Tritium), No Batteries Required
Calibration	M193 Ammunition (5.56mm, 55gr FMJ) from 16" Barrel
Zero Point	Tip of Chevron at 100 meters
BDC Range	Up to 800 meters
Chevron Width	5.5 MOA (19" at 300 meters for range estimation)
Mount	Integrated Picatinny Flattop Mount (TA51 included)
Durability	Forged 7075-T6 Aircraft Aluminum Housing, Waterproof, Fogproof, Shock Resistant
SKU	100288
UPC	719313401185