Trijicon ACOG 4x32 Tritium .223/5.56 BDC

• Battery-free tritium illumination: The amber reticle glows in low light without switches or spare batteries, so the sight picture stays available whenever the rifle is needed.
• Fixed 4x prism design: A compact prism layout keeps the optic short, strong, and simple, giving a clear aiming solution for fast target acquisition and confident holds at medium distance.
• .223/5.56 BDC crosshair reticle: Bullet-drop compensation out to 600 meters reduces the need for turret dialing and helps keep engagement speed high with service-rifle ammunition.
• Backup iron sights: Integrated emergency sights add a practical fallback aiming option if the optic cannot be used, which is especially useful on hard-use carbines.
• Forged aluminum housing: The rugged body, nitrogen filling, and waterproof, fogproof, shockproof construction support reliable use in rough weather, recoil, and field transport.

About the Trijicon ACOG Series

Trijicon ACOG is a long-running family of compact fixed-power prism riflescopes built around the idea of a durable combat optic for medium-distance engagements. The series began with the 4x32 TA01 in 1987, and it remains one of Trijicon’s best-known sighting systems for military, law-enforcement, hunting, and practical shooting use. ACOG models are defined by their short, robust prism-based construction, which keeps weight and bulk under control while reducing the number of moving parts compared with variable-power scopes.

Across the range, bullet-drop compensating reticles and target-ranging features are central to the concept, allowing fast holds instead of constant turret work. Many models use tritium and fiber-optic illumination for an always-available reticle without batteries, while some versions use LED illumination. The series also includes different magnifications, reticle layouts, and specialized variants such as USMC Rifle Combat Optic configurations. Another defining trait is the Bindon Aiming Concept, which supports both-eyes-open use for better awareness around the target area. In practice, the ACOG line sits between non-magnified red dots and larger precision scopes, offering a compact solution for shooters who want speed, durability, and useful magnification in one optic.

About the Trijicon ACOG 4x32 Tritium .223/5.56 BDC

The Trijicon ACOG 4x32 Tritium .223/5.56 BDC is a fixed-power prism riflescope built for shooters who want a compact optic with enough magnification for positive target identification and enough speed for practical carbine work. Its 4x magnification gives a clear advantage over non-magnified sights when engaging smaller targets or working at longer distances, while the 32 mm objective lens and fully multicoated optics help maintain a bright, usable image with strong contrast. The broad field of view supports faster scanning and easier transitions between targets than many larger magnified optics.

This model stands out for its amber crosshair reticle with .223 / 5.56 bullet-drop compensation to 600 meters. That setup is designed to match common service-rifle trajectories, so the shooter can use hold points rather than stopping to dial elevation. Because illumination comes from tritium only, the reticle appears black in daylight and glows in darkness without battery dependence, which suits rifles kept ready for defensive, duty, or field use. The 1/2 MOA click adjustment gives straightforward zeroing, while the fixed-power design avoids the complexity of zoom mechanisms.

The housing is made from forged aluminum and remains compact at 152.00 mm and 442.00 g, making it well suited to carbines where balance matters. Nitrogen filling, waterproof, fogproof, and shockproof construction support reliable service in changing weather and hard handling. This version also includes backup iron sights and a Picatinny flattop thumbscrew mount, giving the optic a practical, ready-to-install configuration for AR-platform rifles.

About Trijicon

Trijicon was founded in 1981 by Glyn Bindon and is based in Wixom, Michigan, United States. The company focuses on aiming systems for military, law-enforcement, hunting, and shooting applications, with product lines that include riflescopes, red dot sights, electro-optics, and iron sights. Its name, adopted in 1985, combines the words for tritium and icon, reflecting the illumination technology that helped define the brand.

Within this category, Trijicon is especially known for illumination systems based on tritium, fiber optics, and LED technology. The company introduced the ACOG in 1987, establishing one of its most recognized optic families, and later expanded its reputation with products such as the RMR. Trijicon optics have also seen extensive institutional use, including ACOG models adopted by the U.S. Marine Corps as the Official Rifle Combat Optic. That background gives the brand a strong association with durable, field-oriented sighting systems designed for hard use.

Main Features

• Product type: Fixed-power prism riflescope
• Series: Trijicon ACOG
• Made in: USA
• Magnification: 4.00 x
• Objective lens diameter: 32.00 mm
• Exit pupil: 8.13 mm
• Field of view: 123.00 m/100m
• Eye relief: 38.10 mm
• Twilight factor: 11.3
• Adjustment per click: 14mm/100m - 1/2MOA
• Length: 152.00 mm
• Weight: 442.00 g
• Power source: AA
• Nitrogen filled: Yes
• Lens coating: Fully Multicoated
• Mount included: Yes
• Mount type: Picatinny Mount
• Color: Black
• Waterproof: Yes
• Fogproof: Yes
• Shockproof: Yes
• Built-in rangefinder: No

Warranty

15 years on the tritium lamp for non-fiber optic ACOG models from the date of original manufacture.

In the Box

• Trijicon ACOG 4x32 Tritium .223/5.56 BDC
• Flattop Thumbscrew Mount (TA51)
• Backup iron sights