Trijicon ACOG ECOS 4x32mm Combo FDE .223 BDC

The Trijicon ACOG ECOS is a fixed-power 4x riflescope paired with an RMR Type 2 red dot to give shooters two practical aiming options in a single package. It features a forged 7075-T6 aluminum housing, multi-coated lenses, and illumination that performs in bright to low-light conditions. The optic is designed for durability and is proven to be waterproof, fog-resistant, and shock-resistant under rigorous testing. This combo is suited to close-quarters scenarios with the RMR and to deliberate, precision work with the magnified ACOG.

Key Specifications

• The magnification is 4x for fixed-power precision.
• The objective lens measures 32mm for a balanced optical footprint.
• The reticle is an illuminated amber crosshair calibrated to .223 BDC.
• The finish is Flat Dark Earth on a forged aluminum housing.
• The overall weight is 15 oz.
• The overall length is 6.20 inches.
• The eye relief measures 1.50 inches.
• The field of view is 36.8 ft @ 100 yds.
• The illumination system uses tritium for the ACOG and an RMR Type 2 LED (CR-2032 battery) for the dot.
• The optic mounts with a quick-release mount for rapid installation and removal.

Built for shooters who expect rugged, repeatable performance, the ACOG ECOS 4x32mm combo blends magnified aiming with a fast red-dot option in a single durable package. Its multi-coated optics and proven resistance to water, fog, and shock make it a reliable choice for a wide range of operational and precision shooting tasks where consistent sighting and simple, practical features are valued.