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Trijicon Compact ACOG 3x30mm – Multiple Options


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Trijicon Compact ACOG 3x30mm

The Trijicon Compact ACOG 3x30mm ACOG model is made for law enforcement and military applications. The combination of ample magnification, low light capability and long eye relief make the TA33 the Trijicon ACOG of choice.

Trijicon Compact ACOG 3x30mm Features

Battery Free Illumination

It features a tritium and fiber optic illuminated reticle that automatically adjusts the brightness based on available light.

Rugged Aluminum Alloy Housing

Forged 7075-T6 aircraft aluminum alloy housing it provides for a nearly indestructible sighting system.

“Both Eyes Open” Design

The ACOG can be used as a CQB sight when shooting “both eyes open,” utilizing the Bindon Aiming Concept (see below).

Fixed Magnification

Fewer moving parts than a variable optic equals more durability.

Combat Proven

No other magnified optic has been used more in combat than the ACOG.

Shock Resistant

Proven to withstand recoil from a .22LR to a .50BMG. Passes U.S. Military drop test requirements.


It is filled with dry Nitrogen to eliminate fogging. Five times more waterproof than military standard requirements.

Limited Lifetime Warranty

Tritium lamp is warranted to illuminate for 15 years on fiber optic scopes and 10 years on non fiber optic scopes.

Bindon Aiming Concept

Human vision is based on a binocular or two eyed vision of an image, traditional riflescopes present a monocular view of the target. This monocular view decreases vision capabilities and makes it difficult to acquire and track targets.

Traditionally, “both eyes open” aiming has been used with iron sights or reflex style sights, but used with a magnified scope was often deemed unlikely. The Bindon Aiming Concept (BAC) is a method of combining “both eyes open” aiming while using a magnified scope.

Shooting with “both eyes open” offers advantages to the user with better situational awareness, a far greater sense of balance, a wider field of view, and far less eye strain. These advantages aid the shooter in quick target acquisition and improved shooting performance.

Utilizing BAC

When you are tracking a moving target with your shooting eye through a riflescope, the image appears blurry as the riflescope moves due to the magnification. This blurriness forces the brain to automatically switch eye focus and take in target data from the non shooting eye. Due to the use of a highly illuminated aiming point in most Trijicon optics, the reticle remains visible in the shooting eye and your brain will overlay the aiming point onto the non magnified target.

When the weapon is moving onto the target, you will not notice any magnification, all that will be seen is the illuminated reticle. Once you slow the weapon onto the target, the target will “zoom” in, allowing you to identify and engage accurately. This aiming concept happens without a conscious thought, for those with equal or close to equal vision in both eyes.

Finding Your Dominant Eye

In order to maximize the potential of “both eyes open” aiming, you must know which eye is dominant. To determine this, conduct the following test:

  1. First, OPEN BOTH EYES, and hold you index finger out in front of you line of sight on a fixed object.
  2. Next, CLOSE your non shooting eye and note the position of finger on target.
  3. Then OPEN BOTH eyes, keeping finger on target.
  4. Finally, CLOSE opposite eye and note position of finger on target.

If your finger or aiming point does NOT move, that is your dominant eye. If your finger or aiming point moves off target at a great distance, your OTHER eye is dominant.

Multi coated lenses provides great clarity and light gathering capabilities with no distortion.


Magnification 3 x
Objective Size (mm) 30 mm
Bullet Drop Compensator Yes
Length 6.1 in
Weight 7.7 oz
Illumination Source Fiber Optics and Tritium
Reticle Pattern Crosshair



Day Reticle Color Red




Night Reticle Color




Calibration 300 BLK




5.56x45mm / 62 Grain



Eye Relief 1.9
Exit Pupil 8.4
Field of View 3.7°
Field of View @ 100 yards 19.3
Adjustment @ 100 yards 4 clicks per in.
Mount Comes With Flattop Thumbscrew Mount
Housing Material Forged Aluminum
Bindon Aiming Concept Yes