Trijicon ACOG TA31-D-100549 | 4x32mm | Red Chevron

The Trijicon ACOG TA31-D-100549 is a fixed-power 4x32mm riflescope that pairs an illuminated red chevron .223/5.56 BDC reticle with a Trijicon RMR Type 2 3.25 MOA red dot mounted on top. The ACOG reticle is dual-illuminated using fiber optics and tritium to provide a visible aiming point across a wide range of light conditions. The package includes a TA51 flattop mount and standard Trijicon accessories for use on flattop platforms.

Applications: precision mid-range target work using the 4x magnified reticle and rapid close-quarters target acquisition using the RMR Type 2 red dot.

Product Specifications

• The optic weighs 15.1 oz.
• The magnification is 4x.
• The objective diameter is 32mm.
• The reticle is an Illuminated Red Chevron .223/5.56 BDC.
• The illumination source is Fiber Optics & Tritium.
• Bullet drop compensation is Yes.
• The reticle is calibrated for 0.223.
• Bindon Aiming Concept (both-eyes-open use) is Yes.
• The eye relief measures 1.5 in.
• The exit pupil is 0.32 in (8.13 mm).
• The field of view is 36.8 ft @ 100 yds.
• Adjustment size is 2 clicks per inch @ 100 yds.
• The mount included is a TA51 flattop thumbscrew mount.
• The housing material is Forged Aluminum.
• UPC is 719307311770.

This ACOG combo brings a proven fixed-power optic together with a compact reflex sight to cover both deliberate and rapid aiming tasks. The dual-illumination reticle and robust forged-aluminum housing are built for repeated field use, while the included TA51 mount simplifies installation on flattop platforms. Whether you prioritize precise holdovers at intermediate ranges or split-second target acquisition up close, the TA31-D-100549 provides an integrated solution that balances durability and optics performance.

Users frequently praise its durability and optical clarity.