Behind the Scenes with Trijicon ACOG 4×32

Set your sights on the Trijicon ACOG 4×32 Advanced Tactical Optical Gunsight. This rifle scope has optical and mechanical designs that will give you greater accuracy in all types of light. The excellence of this 4x fixed magnification scope starts with its design and finishes with its manufacturing. Made out of an aircraft strength aluminum alloy, it is precision tooled and hard-anodized to give you a scope that is lightweight, small, and compact. With this rugged easy to carry scope, you’ll get precision aiming and great results, even with multiple moving targets.

The Trijicon ACOG 4×32 is 100 percent ‘Made in the USA’, from design to engineering, to assembly at Trijicon’s manufacturing facility in Wixom, Michigan. The company continues to follow a tradition started by its founder and all products have a small biblical reference on it. While military and law enforcement can request their scopes without the reference, it is standard on all consumer products.

Trijicon ACOG 4x32 riflescope

Pros and Cons of the Trijicon ACOG 4×32


Superior Lenses

The multi-coating on the Trijicon ACOG 4×32 scope means great light transmission with no distortion no matter what the light conditions. And the 4x magnification puts you right on target.


The Trijicon ACOG 4×32 passes U.S. military drop requirements, with the housing made from a forged 7075-T6 aircraft aluminum alloy.

Illuminated Reticle

No matter what the light, the Trijicon 4×32 ACOG can handle it. The tritium/fiber optic illuminated reticle on the BAC model adjusts automatically to lighting conditions with no battery necessary. It is always on, with the fiber options working with ambient light and the tritium working in full darkness. The LED model illumination uses an AA battery and has 6 brightness options, with an “off” switch between each level. The basic model Trijicon ACOG 4×32 scope uses tritium for illumination.

Reticle Options

There is a choice of reticle options for each model of the Trijicon ACOG 4×32. The LED model offers crosshair, chevron, and horseshoe/dot. The BAC model has options such as doughnut reticle, chevron, crosshair, triangle, horseshoe dot, and more. The standard model offers several types of crosshair reticles. Plus some reticles offer a choice of red, green or yellow dots/chevrons.

Shoot With Both Eyes Open

The Trijicon ACOG 4×32 comes in a Bindon Aiming Concept (BAC) model that lets you shoot with both eyes open. With the BAC scope, it can be used as a Close Quarter Battle (CQB) sight.

Patented killFlash

While some models of the Trijicon ACOG 4×32 come with this anti-reflective system, if yours doesn’t it can be purchased as an option. It is a honeycomb hexagonal pattern that shields the front lens. It diffuses the light coming at the front aperture, preventing the reflective glare that would give the shooter’s position away. A lens hood could do the same job but the killFlash does it without the extra 4 to 5 inches, allowing the Trijicon 4×32 ACOG to maintain its compact size.

Waterproof to 100 Meters

Filled with dry nitrogen to prevent fogging, the Trijicon ACOG 4×32 is also waterproof to 100 meters, five times more than military standards.

Field of View

The field of view with the Trijicon ACOG 4×32 scope is a very clear 36.8 feet at 100 yards. This wide FOV allows for a good balance of precision and conditions awareness.

setting the target with a Trijicon ACOG 4x32



Most negative comments about Trijicon ACOG 4×32 scopes have to do with the prices, starting at over $1,000. However, most users, once they get their scope, are very happy with it and feel the lens clarity and the no battery illumination on the BAC model worth the price.

Right-hand Side of Cross Hair Blurry

This is something a shooter needs to get used to. The mirror in the Trijicon ACOG 4×32 is in the sight at about a 45-degree angle. This means the left side of the reticle is closer to the shooter’s eye and the right side is further away. The result is the focus on the right side is beyond infinity, causing some distortion on that side of the reticle. How much distortion of the right side horizontal reticle line will depend on the shooter’s eyesight. The purpose of the design is to have a vertical center that is parallax free, allowing the built-in ranging to work properly and Trijicon claims it has no effect on the scope’s performance.

RMR Combo

Complaints, when purchased as a combination with the RMR, were too little eye relief because of how far back the RMR mounts. Also, because of the RMR height, there is more of an issue with parallax.

Limited Warranty

The tritium lamp has an illumination warranty of 15 years on fiber optic scopes. On a non-fiber optic model, the tritium lamp warranty is only 10 years.

Eye Relief

All models have a short eye relief at only 1.5 inches. This can be an issue for a scope that is used running and shooting in non-traditional stances. Plus, with short eye relief, the position of the shooter’s eye is very critical and it can take an extra second or two to find the right position.

Who Is This Product Best For?

Usage of the Trijicon ACOG 4×32 is currently heavy military and law enforcement. It has been used in combat more than any other magnified scope and handles recoil from a .22LR to a .50 BMG. This is a great tactical scope, allowing the shooter to quickly acquire moving targets in a mid-range situation. Its tritium reticle makes it the perfect choice for low to no light shooting situations. For use by a civilian, these same features make it good for home defense. And the fact that it works so well acquiring a moving target makes it a favorite of hunters.

The Trijicon ACOG 4×32 is designed for reliability and durability and the 4x fixed magnification is the right level for most shooting. The Advanced Combat Optical Gunsight has the design to provide precise shooting in combat situations and its excellence has been proven many times. Its superior quality gives you the confidence that when you shoot you will hit your target, no matter what the conditions.