For service rifles and tactical shooters who demand repeatable hits and battle-proven reliability, the optic you choose becomes an extension of your training. The following breakdown examines why this fixed 4x combat sight remains a top pick for marksmen who need fast target acquisition, rugged construction, and a reticle that works in any light condition.

TRIJICON ACOG TA31H (.223/5.56 BDC) is a 4×32 ACOG built around crystal-clear glass and a wide field of view, paired with a single-piece aluminum construction that prioritizes durability and long-term zero retention. Shop this product

Performance and optical features

The TA31H delivers a true 4×32 optical system that emphasizes a broad field of view for quick engagement of moving or multiple targets. The sight uses a self-illuminated reticle that combines fiber optic and tritium inserts—providing daytime brightness via ambient light and nighttime visibility without batteries. The H reticle features a red horseshoe and center dot for fast center hold and intuitive acquisition at speed.

Ballistic ranging for 5.56x45mm NATO

This specific model’s ranging reticle is calibrated for 5.56x45mm NATO on flat-top rifles, giving practical holdovers out to 800 meters. For shooters running .223/5.56, that calibration simplifies first-round hits at known distances and provides repeatable hold points for suppression and precision work.

Durability and mounting

Trijicon built the TA31 on a single-piece aluminum chassis for shock resistance and zero stability. Mounting is straightforward with the included TA51 series Picatinny mount: hand-tighten, then a quarter-turn adjustment secures the optic to any standard Picatinny rail. That quick-detach convenience aids field maintenance and allows predictable re-zero after removal.

At $1,229.99, this ACOG places itself in the premium optic segment because of its mixed illumination system, robust construction, and combat-proven design. View product details and pricing on the shop page to see current availability and full specs.

Who should consider this ACOG

Patrol shooters, competition tacticians, and precision-oriented recreational marksmen who run .223/5.56 platforms will appreciate the TA31H’s ballistic calibration and durable build. Its battery-free illumination and simple mounting system make it ideal for users who need an optic that performs in adverse conditions without constant maintenance.

For purchase details, guaranteed mounting compatibility, and final pricing, check current availability on the product page where you can complete your purchase through the retailer. Check current availability

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