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Trijicon

Trijicon TA31-D-100288 ACOG 4x32mm Dual Illuminatedx 40mm, Red Chevron M193 Reticle with TA51 Mount, Black

  • Based on 37 reviews
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Availability: Only 1 left in stock, order soon!
Fulfilled by Optics Planet (✅Authorized Dealer ✅Fast Shipping)
Arrives Jul 13 – Jul 17
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Features

  • BATTERY-FREE ILLUMINATION: Features a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light
  • RUGGED ALUMINUM-ALLOY HOUSING: Forged 7075-T6 aircraft-aluminum-alloy housing provides for a nearly indestructible sighting system
  • BOTH EYES OPEN DESIGN: The ACOG can be used as a CQB sight when shooting both eyes open, utilizing the Bindon Aiming Concept
  • COMBAT PROVEN: No other magnifed optic has been used more in combat than the ACOG
  • BULLET DROP COMPENSATING & RANGING RETICLES: The Red Chevron M193 ranging reticle allows for bullet drop compensation out to 800 meters without any manual adjustments adjustments

Description

This 4x32 BAC ACOG scope provides a dual-illuminated reticle using fiber optics and tritium for a bright aiming point in any light condition. The ranging reticle is calibrated for M193 ammunition (5.56, 55 gr. FMJ, common military surplus) fired from a 16" barrel. The chevron reticle is designed to be zeroed using the tip at 100 meters and the BDC goes out to 800 meters. The width of the chevron at the base is 5.5 MOA which represents 19" at 300 meters. This allows range estimation for silhouette targets. Product includes: - 1 Flattop mount for Picatinny rail - 1 4x32 Scopecoat - 1 lens pen - 1 Trijicon logo sticker - 1 ACOG manual. Specifications: - magnification: 4x - objective size: 32mm - bullet drop Compensator: yes - length: 5.8" - weight: 9.9 oz. Without mount - illumination source: fiber optics & tritium - reticle pattern: chevron - day reticle color: Red - night reticle color: Red - calibration: M193 (5.56) - Bindon aiming concept: yes - eye relief: 1.5" - exit Pupil: 8mm - field of view (degrees): 7 - field of view at 100 yards: 36.8' - adjustment at 100 yards (clicks/in): 2- mount: TA51 - mount comes with: TA51 - housing material: forged aluminum - color: matte black

Brand: Trijicon


Color: Red


Style: Chevron M193


Sport: Hunting


Item Weight: 3 Ounces


Material: Aluminum


Magnification Maximum: 4 x


Objective Lens Diameter: 32 Millimeters


Magnification Minimum: 4 x


Compatible Devices: Handgun


Magnification Maximum: 4 x


Objective Lens Diameter: 32 Millimeters


Magnification Minimum: 4 x


Compatible Devices: Handgun


Mounting Type: Picatinny Mount


Night vision: Yes


Eye Relief: 38.1 Millimeters


Field Of View: 7 Degrees


Thread Type: UNC


Reticle Type: Chevron


Item Weight: 3 Ounces


Color: Red


Product Style: Chevron M193


Lens Color: Red


Brand Name: Trijicon


Sport Type: Hunting


Model Name: TA31-D-100288


Manufacturer: Trijicon


UPC: 719307306882


Global Trade Identification Number: 82


Model Number: TA31-D-100288


Manufacturer Part Number: TA31-D-100288


Unit Count: 1.0 Count


Included Components: Scope, lens pen, logo sticker, manual, mount, scopecoat


Item Type Name: Trijicon, ACOG 4x32mm Dual Illuminated Scope, Red Chevron M193 Reticle with TA51 Mount, Black


Material Type: Aluminum


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 13 – Jul 17

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews

    • Amazing!
Honestly, very-very pleased with this Trijicon! To start with, It’s the real deal. I purchased for my husband and now I’ll probably get one as well. Better than our sigs, eotechs, holosuns, etc. The eye relief is unremarkable! You can just pick up your rifle and it’s clear! No fiddling to get lined up. Light weight! Nice medium size. Perfect clear glass. 5 stars. Worth the money when you compare. ... show more
Reviewed in the United States on March 16, 2026 by jessica g.
    • Bullet Proof solid scope.
Awesome scope for any AR rifle. Its simple reticle has a close eye relief so your limited on what it can be used on. But, its really only designed for one application!
Reviewed in the United States on February 11, 2026 by VERN in 106
    • You get what you pay for.
I’m not big on reviews, but sorry, some of these people give unfair reviews. Pros - crystal clear glass, great reticle, perfect for distances close and far Cons- tough to drop this much on an optic. But you get good value. Overall highly recommend. Unfortunately I’ll compare all future optics to this and will end up spending more lol ... show more
Reviewed in the United States on September 21, 2019 by toddboy71
    • No batteries. Always on. Compensates for distance
The only downside is the eye relief 1.5” otherwise this isn the perfect option for an AR or tactical rifle .
Reviewed in the United States on March 27, 2022 by NYMTB
    • A true ACOG! (Bible verse included)
This is one of the best scopes out there period. Tried and war tested true. Dial it in and take charge! Take the time to learn how to use it and get the real return this scope is designed to give. It doesn't disappoint.
Reviewed in the United States on April 2, 2020 by HILLCSI
    • Great glass- worth every penny.
Awesome optics. Dead on. Only have used it at 100 yds, but see no reason when I get out to a longer range that it won’t be as accurate.
Reviewed in the United States on September 28, 2019 by Mount178
    • Military Grade
Awesome Optic! It took some getting use to looking through but when I was able to take it outside, it definitely lived up to the hype. Ready to take it to the range and see what it’s all about
Reviewed in the United States on October 16, 2019 by Darrell Lampkin
    • It's worth it.
Take the plunge and get one
Reviewed in the United States on October 11, 2019 by Daniel

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