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Trijicon ACOG 4x32 TA31ECOS Sight
Trijicon ACOG 4x32 TA31ECOS Sight
Trijicon ACOG 4x32 TA31ECOS Sight

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Dark Earth Brown Scope, Dual Illumination Red Crosshair Reticle w/ 3.25 MOA RMR Sight

BLUF: Long Range + CQB in one. Transitioning was never so easy.

List Price: $2,112.00
Our Price: $1,795.20

Stock Status:(Out of Stock)
Product Code: TRJ.105

Per ITAR regulations, I understand that SKD cannot ship this item to APOs and International addresses. Note: US Military members serving OCONUS, please have your order shipped to your US address.


Trijicon ACOG 4x32 TA31ECOS Sight

The Trijicon ACOG ECOS is the ultimate sight for both Close Quarter Battle (CQB) situations and longer distance shooting where accuracy and pinpoint bullet placement are required. Trijicon is the first to market with its unique dark earth brown color, a definite factor to concealment- directly contributing to the safety of the operator, who is often in harm’s way.

This dual-sighting system gives the shooter a distinct tactical advantage with the option of either the Trijicon ACOG or RMR sight. With the quick target acquisition of the RMR Sight or the precise aiming capabilities provided by the magnified 4 power Trijicon ACOG— the shooter has the ability to select the proper aiming solution for the situation at hand—truly the best of both worlds. No tools are needed for windage and elevation adjustments because the ECOS also features external windage and elevation adjusters, making it waterproof up to 11m without caps.

The TA31ECOS also includes:
  • 1 3.25 MOA RMR™ LED Red Dot Sight mounted to ACOG (RM01)
  • 1 A.R.M.S.(R) Throw Lever Mount
  • 1 Set of backup Iron Sights
  • 1 Lenspen (TA56)
  • 1 Medium sized Pelican Case (TA88)
  • 1 Trijicon Logo Sticker (PR15)
  • 1 ACOG Manual
  • 1 Warranty Card
  • Magnification: 4x
  • Objective Size: 32
  • Bullet Drop Compensator: Yes
  • Length (in): 6.2
  • Weight (oz): 15
  • Illumination source: Fiber Optics & Tritium
  • Reticle Pattern: Crosshair
  • Day Reticle Color: Red
  • Night Reticle Color: Red
  • Calibration: .223
  • Eye Relief (in): 1.5
  • Exit Pupil (mm):
  • Field of View (°): 7
  • Field of View @ 100yrds (ft): 36.8
  • Adjustment @ 100 yds (clicks/in): 2
  • Mount: A.R.M.S. #19LD
  • Mount On/Comes With: A.R.M.S. #19LD
  • Housing Material: Forged Aluminum

Additional Info

5 of 5 Total Reviews: 1 Write a Review

  1 of 1 people found the following review helpful:
Premium Optic, Battle proven, Worth every penny. November 29, 2012
Reviewer: Jordan Noble from Oglala, SD United States  
I bought this optic months ago, I was stuck deciding between a SPR AR-15 with a precision scope, or a AR-15 ACOG. I went the ACOG route, although It may have been fun to have an 8x. I have no regret what so ever.

This is a premium Optic, battle proven and is built like a tank. In my opinion it was worth every penny. The glass is crystal clear, Has 1/2MOA clicks, up down, left right.

The TA31ECOS (dark earth//brown)
Has a range compensator out to 1000m, the retical itself says 1-600m is for the 5.56, and 7-1000m is for the m249 saw, You can use it out to 1000m, but at that range the 5.56 bullet splash on dirt is hard to detect.

the Trijicon RMR red dot mounted up top. The RMR Also has 1/2 MOA clicks. The RMR has no on//off button it goes off after a period of no movement, and comes on again when movement is detected.

RMR again has no brightness setting, but in daytime winter, the snow is bright on the eyes, but the red dot is still very see-able.


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