Trijicon ACOG TA31RCO 4x32mm Illuminated Green Chevron

The Trijicon ACOG TA31RCO is a fixed-power riflescope engineered for use on M4-pattern rifles and is calibrated for .223 with a 14.5 inch barrel. It uses dual illumination—fiber optics for daytime and tritium for low-light—to present a consistently visible aiming point without batteries. The reticle pattern is a green illuminated chevron paired with a target reference system and a bullet drop compensator for practical engagement out to extended ranges.

Key Specifications

• The magnification is 4x.
• The objective lens measures 32 mm.
• The reticle is an illuminated green chevron.
• Illumination sources are fiber optics and tritium.
• The scope is calibrated for .223 (14.5 in. barrel).
• The field of view is 36.8 ft @ 100 yds (7°).
• The eye relief is 1.5 inches.
• The weight is 16.2 oz.
• The mount included is a TA51 flattop thumbscrew adapter.
• The housing is made from forged aluminum with a matte black finish.

Built to perform in bright daylight and in low-light conditions without reliance on batteries, the TA31RCO combines proven optical clarity with a rugged forged-aluminum housing and integrated mounting for modern flattop platforms. Its illuminated chevron reticle and ballistic compensation make it suitable for duty, patrol, and precision-oriented shooting where quick target acquisition and durable, battery-free illumination are priorities.