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Trijicon
The Trijicon ACOG 4x32 FDE ACOG TA31-D-100310 is the flat dark earth finish 4x32 ACOG configuration with red chevron BAC reticle calibrated for 5.56 .223 flattop rifles - delivering the Bindon Aiming Concept's instinctive both-eyes-open acquisition alongside the sharp chevron tip's most precisely defined aiming reference, calibrated specifically for .223 flattop rifle ballistics out to 800 meters, in the earth-tone FDE finish that integrates naturally with tan and FDE weapon systems.
The Trijicon ACOG TA31 TA31-D-100310 FDE finish gives earth-tone and tan weapon system builders the complete 4x32 ACOG capability in the color-matched finish that reduces visual inconsistency across the weapon system — a practical and aesthetic choice for shooters who build consistent color-coordinated equipment setups. The FDE finish, combined with the red-chevron BAC reticle, delivers the complete ACOG performance package in the configuration that earth-tone builds demand.
The Trijicon TA31 red chevron BAC reticle is zeroed using the tip at 100 meters with BDC holdover references extending out to 800 meters for the specific .223 trajectory. The 5.53 MOA chevron base width represents 19 inches at 300 meters - providing a practical silhouette target ranging reference for fast field distance estimation. The BAC both-eyes-open design enables instinctive close-range acquisition through the open chevron shape, while the sharp red tip handles precise medium and extended-range shot placement.
The ACOG 4X TA31-D-100310 fiber-optic and tritium dual-illumination automatically adjusts the red chevron brightness to ambient light - tritium maintains the reticle at night without batteries. Always on, always ready.
Trijicon ACOG riflescopes come in the following magnification levels:
1.5x16, 1.5x24, 2x20, 3x24, 3x30, 3.5x55, 4x32, 5.5x50, and 6x48.
With over one million produced, Trijicon’s Advanced Combat Optical Gunsight, better known as the ACOG has become iconic in the realm of combat optics — and for good reason, the ACOG has an unquestioned reputation for quality and reliability. The Trijicon ACOG is the official medium range weapon sight for both U.S. Special Operations Forces and the Marine Corps as well as being the optic of choice for law enforcement agencies across the country. What sets the ACOG apart from the pack is what it offers to its users, increased hit potential regardless of light conditions. This is due to the tritium/fiber optic illuminated reticle found in most Trijicon ACOG riflescopes, this automatically adjusts illumination of the reticle based on available light. With a wide array of magnification levels, reticle designs, and reticle colors available — there truly is an ACOG for every mission.
Trijicon ACOG riflescopes come in the following magnification levels:
1.5x16, 1.5x24, 2x20, 3x24, 3x30, 3.5x55, 4x32, 5.5x50, and 6x48.
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TA31-D-100310
719307307247
100310
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