The Trijicon ACOG ECOS Combo 4x32mm FDE optic delivers a robust aiming solution engineered for demanding operational environments. Its fixed 4x magnification, combined with a forged 7075-T6 aircraft-aluminum-alloy housing, provides exceptional structural integrity. Multi-coated lenses ensure superior light transmission and a clear sight picture across diverse conditions.
Key Features
Construction & Durability
This ACOG unit is designed for maximum resilience, featuring fogproof, waterproof, and shock-resistant properties. It has been rigorously tested to withstand recoil impulses from .22LR up to .50 BMG, consistently meeting U.S. military drop test standards for sustained field performance.
Optical Performance
The optic features a precise 4x magnification with a 32mm objective lens, optimizing target identification and engagement at range. The illuminated amber crosshair .223 BDC reticle provides calibrated aiming points for effective bullet drop compensation, ensuring accuracy across varying distances and lighting conditions.
Integrated System & Versatility
The ACOG ECOS system is engineered for operational flexibility. It integrates a 3.25 MOA RMR Type 2 LED Red Dot sight, directly mounted atop the ACOG. This configuration enables rapid target acquisition in close-quarters battle (CQB) scenarios and facilitates an immediate, seamless transition to the 4x magnified optic for precision engagements at extended ranges. A Trijicon Quick Release Mount is included, simplifying attachment and detachment to the host weapon system and maintaining zero.
Technical Specifications
- Model: Trijicon ACOG ECOS Combo 4x32mm
- Finish: Flat Dark Earth (FDE)
- Magnification: 4x Fixed
- Objective Lens Diameter: 32mm
- Housing Material: Forged 7075-T6 Aircraft-Aluminum Alloy
- Reticle Type: Illuminated Amber Crosshair .223 BDC
- Included Auxiliary Optic: Trijicon 3.25 MOA RMR Type 2 LED Red Dot
- Mounting System: Trijicon Quick Release Mount
- Environmental Resistance: Fogproof, Waterproof, Shock-Resistant
- Recoil Resistance: Qualified up to .50 BMG
- Military Compliance: Meets U.S. military drop test standards









