Trijicon TA31RCO Scope Review: The ACOG Used By The USMC & US Army (HD)

Published on May 3, 2017
Duration: 18:48

This review covers the Trijicon TA31RCO ACOG, a combat-proven optic used by the USMC and US Army. It highlights the scope's robust 7075-T6 aluminum construction, dual illumination system (tritium/fiber optic), and the M150 grid reticle for target reference. While featuring a short eye relief, it offers a wide field of view and includes BDC for 5.56 M855 out of a 20-inch barrel.

Quick Summary

The Trijicon TA31RCO ACOG is a 4x32 combat optic used by the USMC and US Army, known for its extreme durability and dual illumination system (tritium/fiber optic). It features an M150 grid reticle for target reference and a BDC calibrated for 5.56 M855 ammo.

Chapters

  1. 00:28Introduction to TA31RCO Variants
  2. 02:37Eye Relief & Field of View
  3. 03:37External Features & Construction
  4. 04:21Turrets & Waterproofing
  5. 05:06Dual Illumination System Explained
  6. 06:39Killflash & Objective Lens
  7. 07:23Weight & Mounting Options
  8. 08:02M150 Grid Reticle System
  9. 09:11BDC & Ranging Capabilities
  10. 10:56ACOG Model Comparisons
  11. 13:32Summary & Value Assessment

Frequently Asked Questions

What makes the Trijicon TA31RCO ACOG suitable for military use?

The TA31RCO ACOG is built to stringent military durability standards, featuring a robust 7075-T6 aluminum housing. Military variants often have specific reticle tweaks, like the M150 grid, for enhanced target reference and communication within fire teams.

How does the ACOG's dual illumination system work?

The TA31RCO utilizes a dual illumination system combining a tritium vial for low-light conditions and a fiber optic rod that gathers ambient light for daylight use. This ensures the reticle is visible across a wide range of lighting environments.

What are the key reticle features of the TA31RCO?

The RCO variant features the M150 target reference system, a grid used for communicating target positions. It also includes a Bullet Drop Compensator (BDC) calibrated for 5.56 M855 out of a 20-inch barrel, along with ranging capabilities.

What is the eye relief and field of view on the Trijicon TA31RCO ACOG?

The TA31RCO has a relatively short eye relief of 1.5 inches, requiring the shooter's eye to be close to the optic. However, this allows for a very wide field of view, measuring 36.8 feet at 100 yards, which is advantageous for situational awareness.

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