The Trijicon ACOG 4x32mm is a compact, internally adjustable combat riflescope built around Trijicon’s Bindon Aiming Concept (BAC), which lets shooters keep both eyes open for fast, instinctive target acquisition (model TA31-G). It features a dual-illuminated reticle that combines fiber optics for daylight brightness with tritium for illumination at night, so it never needs a battery, with a green donut aiming point, calibrated for .223 Rem/5.56 NATO.

Key Specifications

• Delivers 4x fixed magnification through a 32mm objective lens.
• Features an illuminated Green Donut reticle for a fast, repeatable aiming point.
• Reticle is calibrated for .223 Rem/5.56 NATO ballistics.
• Uses Trijicon’s battery-free dual-illumination (fiber optic by day, tritium at night).
• Built around Trijicon’s Bindon Aiming Concept (BAC) for both-eyes-open shooting.
• Provides 1.50 in. of eye relief.
• Lenses are multi-coated for improved light transmission.
• Manufactured by Trijicon.

Frequently Asked Questions

Does this Trijicon ACOG need a battery? No. This ACOG uses Trijicon’s dual-illumination system, fiber optics by day and tritium at night, so there is no battery to replace.

What caliber is the reticle calibrated for? The reticle is calibrated for .223 Rem/5.56 NATO, matching typical ammunition drop out to several hundred yards.

What magnification and objective size does this ACOG have? This model is a fixed 4x magnification with a 32mm objective lens.

Buy the Trijicon ACOG 4x32mm Green Donut (.223) Riflescope

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