Trijicon ACOG 3.5x35 LED | 3.5x35 Scope w/ 12,000+ Hour Battery Life & TA51 Mount | Waterproof

Trijicon ACOG 3.5x35 LED: The Ultimate Tactical Scope to Find Targets Fast and Hit with Dead-On Accuracy

• The Trijicon ACOG 3.5x35 LED Illuminated Riflescope is a battle-proven, fixed-power optic engineered for medium-range engagements where speed and precision are life-critical. Built for the U.S. Marine Corps and Special Operations, this rugged sighting system provides increased hit potential in any lighting condition without the weight of variable power scopes. It combines professional-grade glass with an adjustable LED reticle to ensure you stay on target from bright daylight to total darkness.
• Engage Targets with 3.5x Magnification: The fixed 3.5x magnification and 35mm objective lens provide a clear 28.9-foot field of view at 100 yards. This specific power level is the sweet spot for identifying threats at a distance while maintaining enough speed for close-quarters movement. The multi-coated glass maximizes light gathering, giving you a bright image with zero distortion even in low-light woods or urban shadows.
• Multiple Reticle Options for Any Mission Profile: Choose from several professional-grade reticles including the Chevron, Crosshair, or Horseshoe Dot, available in Red or Green LED illumination. Each reticle features built-in Bullet Drop Compensation (BDC) calibrated for specific calibers like .223/5.56, .308/7.62, or .300 BLK. By using the Bindon Aiming Concept (BAC), these reticles allow for "Both Eyes Open" shooting, providing a clear aiming point without sacrificing your peripheral vision or situational awareness.
• Over 12,000 Hours of Constant Power: A single AA battery runs the LED illumination for more than 500 days of continuous use on setting four. You can choose from six adjustable brightness levels to match your environment, with a dedicated "off" position between each setting for quick deployment. This ensures your reticle is always visible without worrying about frequent battery swaps in the field.
• Forged 7075-T6 Military-Grade Durability: The housing is made from the same aircraft-grade aluminum alloy used in fighter jets, making it nearly indestructible. It is dry-nitrogen filled to prevent internal fogging and is tested to withstand recoil from a .22LR all the way up to a .50 BMG. This waterproof and shock-resistant optic easily passes U.S. Military drop tests, ensuring it won't fail when the mission gets rough.

Trijicon ACOG 3.5x35 LED Riflescope Features & Specifications

The Trijicon ACOG 3.5x35 LED Riflescope is an essential tool for shooters who need a balance of magnification and speed for medium-distance engagements. It is uniquely engineered to provide increased hit potential in all lighting conditions by combining precise long-range marksmanship with rapid close-quarters speed. Its standout feature is the user-selectable LED brightness control, allowing operators to adjust the reticle across six settings to match any environment from bright daylight to total darkness. Forged from aircraft-grade aluminum and proven in combat, the nearly indestructible ACOG 3.5x35 LED scope ensures you maintain a clear field of view and high situational awareness through its "both eyes open" design.

Key Features

• User-Selectable Brightness: Features six adjustable brightness levels with an "off" setting between each, giving you total control over reticle illumination even in transitional lighting.
• Combat-Proven Durability: Forged from 7075-T6 aircraft-grade aluminum, the housing is designed to be nearly indestructible and is tested to withstand recoil from .22LR up to .50 BMG.
• Superior Optical Clarity: Multi-coated glass lenses maximize light gathering and provide a clear field of view with zero distortion.
• Bindon Aiming Concept (BAC): Supports "both eyes open" shooting to improve situational awareness and target acquisition speed.
• Versatile Reticle Options: Available with multiple bullet drop compensating (BDC) and ranging patterns, including Chevron, Horseshoe/Dot, and Crosshair.
• Dependable Battery Life: Powered by a single AA battery that can run for over 12,000 continuous hours on moderate settings.
• Field-Ready Resilience: The unit is dry-nitrogen filled to eliminate internal fogging and is waterproof to exceed military standards.

Specifications

• Magnification: 3.5x
• Objective Size: 35mm
• Illumination Source: LED powered by a single AA battery
• Reticle Colors: Available in Green or Red illumination
• Reticle Patterns: Chevron, Crosshair, or Horseshoe/Dot
• Mount Included: TA51 Flattop Thumbscrew Mount
• Caliber Calibration: Calibrated for .223/5.56 or .308/7.62 (model dependent)
• Battery Life: Over 12,000 hours on brightness setting #4
• Field of View: 28.9 feet at 100 yards (5.5 degrees)
• Eye Relief: 2.4 inches (61.0mm)
• Exit Pupil: 0.39 inches (10.0mm)
• Dimensions: 8.0 x 3.0 x 2.6 inches
• Weight: 20.8 oz. (with battery)
• Housing Material: Forged 7075-T6 Aircraft Aluminum
• Adjustment Increments: 2 clicks per inch at 100 meters (or 3 clicks per inch at 100 yards)
• Adjustment Range: 40 MOA total travel

What's in the box of the Trijicon ACOG 3.5x35 LED Scope?

• (1) Trijicon ACOG 3.5x35 LED Riflescope
• (1) TA51 Flattop Thumbscrew Mount (Pre-installed)
• (1) AA Alkaline Battery
• (1) LensPen (Optical Cleaning Tool)
• (1) Trijicon Logo Sticker
• (1) Warranty Card and Instruction Manual

Trijicon ACOG 3.5x35 LED Tactical Scope FAQs

What does 3.5x35 mean? 

The first number (3.5x) means the Trijicon ACOG 3.5x35 LED Scope makes things look three and a half times larger than they do with your naked eye. The second number (35) is the size of the front lens in millimeters. A 35mm lens is large enough to let in plenty of light so you can see clearly even when it is getting dark outside.

Why does this ACOG 3.5x35 LED use LED lights? 

Unlike older models that use glowing gas, the Trijicon ACOG 3.5x35 LED Sight uses a battery-powered LED light to make the aiming point (reticle) glow. This is great because you can choose exactly how bright you want it to be. If it is a very sunny day, you can turn it up, or if it is dark, you can turn it down so it doesn't hurt your eyes.

What are the different aiming marks (reticles) and when should I use them? 

We offer three main shapes to help you aim:

• Chevron (V-shape): Best for general use. It is very fast to see and great for hitting targets at many different distances.
• Crosshair (Plus-shape): Best for extreme precision. Use this if you are trying to hit a very small target from far away.
• Horseshoe/Dot (Circle with a dot): Best for speed. The big circle helps your eye find the center instantly, which is perfect for fast-moving targets.

What is BDC and how does it help me? 

BDC stands for Bullet Drop Compensation. When a bullet flies a long way, gravity pulls it down. The Trijicon ACOG 3.5x35 LED Tactical Scope has small marks inside the glass that show you exactly where to aim for targets at various distances, so you don't have to guess while you are trying to shoot.

What is BAC and why is it a benefit?

 BAC stands for Bindon Aiming Concept. It is a way of saying you can keep both of your eyes open while looking through the Trijicon ACOG 3.5x35 LED Illuminated Riflescope. One eye sees the zoomed-in target, and the other eye sees everything around you, which helps you stay aware of your surroundings.

Is this scope waterproof? 

Yes. It is sealed tight and filled with dry nitrogen so it won't fog up inside. You can use it in heavy rain, snow, or extreme heat without worrying about it breaking.

Where can I find the Trijicon ACOG 3.5x35 LED Scope for sale? 

You can find the Trijicon ACOG 3.5x35 LED for sale directly at Atomic Defense. We are a trusted provider of high-end tactical optics, ensuring you get the exact Trijicon ACOG 3.5x35 LED Scope for Sale you need for your mission. When you buy from us, you receive a brand-new, fully backed optical system with expert support.