Trijicon TA31F ACOG 4x32 BAC Riflescope | Dual Illuminated Red Chevron

$1,277.00 $980.00
(You save $522.00 )
(26 reviews)
Current Stock:

Trijicon TA31F ACOG 4x32 BAC Riflescope | Dual Illuminated Red Chevron


The Trijicon TA31F ACOG 4x32 Rifle Scope with Red Chevron BAC Reticle is the USMC optic of choice. The red chevron reticle is designed to be zeroed using the tip at 100 meters. The width of the chevron at the base is 5.53 MOA which is 19 in. at 300 meters. This allows range estimation for silhouette targets. Features dual illumination (Fiber optics provides daylight illumination and tritium illuminates reticle at night). The ranging reticle is calibrated for 5.56 (.223 cal) flattop rifles out to 800 meters.

The TA31F also includes:

  • 1x Thumbscrew Picatinny Mount (TA51)
  • 1x 4x32 Rifle Scopecoat (TA64)
  • 1x Lenspen (TA56)
  • 1x Trijicon Logo Sticker (PR15)
  • 1x ACOG Manual
  • 1x Warranty Card


  • Magnification: 4x
  • Objective Size: 32mm
  • Bullet Drop Compensator: Yes
  • Length (In): 5.8""
  • Weight (oz): 9.9 oz w/out mount
  • Illumination Source: Fiber Optics & Tritium
  • Reticle Pattern: Chevron
  • Day Reticle Color: Red
  • Night Reticle Color: Red
  • Calibration: .223/5.56x45mm
  • Eye Relief: 1.5""
  • Exit Pupil: 8mm
  • Field of View (Degrees): 7º
  • Field of View @ 100 yards (ft): 36.8'
  • Adjustment @ 100 yards (clicks/in): 2""
  • Mount Comes With: TA51 Picatinny Mount
  • Housing Material: Forged Aluminum


  • 5
    Best price around

    Posted by Phillip on 8th Sep 2022

    Best price around for a 4x32 Acog. Shipped right away and zero issues during process.

  • 5
    Trijicon Quality 100%

    Posted by Art on 12th Feb 2022

    I decided to spend the $$$ on a simple, rugged and reliable optic that didn't require batteries and was battle proven. I was so pleased with my purchase, that I bought a second one. The price was great and the shipping was quick.

  • 5
    Trijicon TA31F ACOGon TA31F ACOG 4x32 BAC

    Posted by Boyscout1953 on 27th Nov 2021

    Great optic! Easy to install and use. Almost indestructable

  • 5
    Great Optic

    Posted by 68Mopar on 8th Oct 2021

    Proven optic in the field. Great Price!!

  • 5
    Trijicon TA31F ACOG

    Posted by Robert French on 10th Jan 2021

    First ACOG. Positive transaction, no issues

  • 5
    Awesome price

    Posted by Papi Chulo on 19th Dec 2020

    Great product, fast shipping.

  • 5
    Can’t go wrong!!!

    Posted by TwT on 15th Dec 2020

    Awesome price on a battle proven optic. Crystal clear glass with a bulletproof design. Service was fast and communication from Arms Unlimited was timely and detailed. Highly recommend!

  • 5
    AU is one of the best

    Posted by Gerald on 13th Dec 2020

    Great pricing, Easy ordering, Quick shipping. I wish all online merchants were as honest and effective. For all my needs I always look up AU first.

  • 5
    TA31F ACOG 4X32

    Posted by Johnny on 8th Dec 2020

    New ACOG at a great low price. Shipping took a few weeks but worth the wait.