Trijicon ACOG 4×32 ECOS 5.56mm Combat Optic with RMR

$1,900.00

2 in stock

Integrated 4x ACOG and RMR optic system for rapid target acquisition across all engagement distances. Calibrated for 5.56mm platforms.

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SKU: LIP|TRTA31D100553

Product Overview

The Trijicon ACOG 4×32 ECOS (Enhanced Combat Optical Sight) with RMR represents a comprehensive optical solution for professional operators and discerning firearm enthusiasts. This system integrates the battle-proven 4×32 ACOG with a top-mounted Trijicon RMR (Ruggedized Miniature Reflex) sight, providing rapid target acquisition capabilities across a spectrum of engagement distances. Engineered for 5.56mm caliber platforms, this optic mitigates the need for multiple sighting systems by delivering both intermediate-to-long range precision and immediate close-quarters versatility.

Key Features

Integrated Optical System

The core of the ECOS system is the fixed 4x magnification ACOG, renowned for its crystal-clear optics and robust performance. Perched atop is a Trijicon RMR, allowing for seamless transition between magnified target identification and rapid, reflexive close-range engagements. This dual-optic integration optimizes situational awareness and tactical response in dynamic environments.

Dual-Illuminated Reticle

The ACOG features a 5.56mm Ballistic Compensated Reticle, precision-engineered for holdovers specific to the 5.56mm cartridge. Illumination is passively powered by a fiber optic for daylight conditions and tritium for low-light or no-light scenarios, ensuring constant reticle visibility without the need for batteries. This provides uncompromising readiness under any ambient light condition.

Ruggedized Construction

Constructed from a forged 7075-T6 aircraft-grade aluminum alloy housing, the ACOG ECOS is built to withstand extreme operational demands. It is nitrogen-purged to eliminate fogging and rigorously waterproof to 100 meters (328 ft.), ensuring reliable performance in the harshest environments. Its fixed magnification design and robust internal components contribute to its exceptional shock resistance and long-term durability.

Optimized Ballistics

The dedicated 5.56mm reticle provides precise ranging and holdover points, enabling accurate engagement out to the effective range of the cartridge. This specific calibration ensures ballistic accuracy, reducing user input and increasing first-shot probability in critical situations.

User-Focused Design

With a practical eye relief and generous field of view, the ACOG ECOS facilitates rapid target acquisition and maintained awareness. The Flat Dark Earth (FDE) finish integrates effectively with modern rifle platforms and tactical gear, reducing signature and enhancing camouflage in diverse operational settings.

Technical Specifications

  • Magnification: 4x (ACOG), 1x (RMR)
  • Objective Lens Diameter: 32mm
  • Reticle: 5.56mm Ballistic Compensated Reticle (ACOG)
  • Secondary Optic: Trijicon RMR
  • Illumination Source: Fiber Optic & Tritium (ACOG)
  • Eye Relief: 1.5 inches
  • Field of View: 7.0 degrees / 36.8 ft. @ 100 yards
  • Adjustment Per Click: 1/2 MOA (2 clicks/inch @ 100 yards)
  • Housing Material: Forged 7075-T6 Aircraft-Grade Aluminum
  • Finish: Flat Dark Earth (FDE)
  • Waterproof: To 100 meters (328 ft.)
  • Length: 6.2 inches
  • Weight: 15.8 oz (with RMR and mount)
UPC

719307311817

Manufacturer

Trijicon

Manufacturer Part Number

TA31-D-100553

Adjustment Size

2 Clicks per Inch @ 100 yds

Eye Relief

1.50"

Length

6.20"

Magnification

4x

Optic Coating

Multi-Coated

Adjustable Parallax

Dual Illuminated Red Crosshair 223

Reticle

Illuminated Red Crosshair .223 BDC

Product Type

Accessory-Scopes

Shipping Weight

2.2

Package Width

8.0

Package Height

5.0

Power

4X

Objective Size

32mm

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