Trijicon ACOG RCO 4×32 Riflescope, Red Chevron Reticle

Description

Trijicon ACOG RCO Features and Performance

The Trijicon ACOG RCO 4×32 Riflescope with Red Chevron Reticle is built for shooters who want a proven fixed-power combat optic with battery-free illumination and field-proven durability. This TA31RCO-A4CP configuration is the USMC Rifle Combat Optic version designed around the M16A4 platform, making it a strong fit for clone builds, defensive rifles, and general-purpose 5.56 setups.

Its fixed 4x magnification and 32 mm objective help provide a clear, capable sight picture for practical rifle use, while the red chevron reticle supports both rapid target acquisition and more deliberate shot placement. Trijicon’s fiber optic and tritium illumination system keeps the reticle visible in changing light without relying on batteries, which remains one of the defining strengths of the ACOG platform.

Built from rugged forged aluminum, this optic is designed for hard use in demanding conditions. The compact housing helps keep weight manageable while still delivering the durability and field-ready performance Trijicon optics are known for. The included TA51 flattop mount also makes this a practical ready-to-install setup for compatible rifle platforms.

With 1.5 inches of eye relief, a 36.8-foot field of view at 100 yards, and the long-proven Bindon Aiming Concept design, this model remains a strong option for shooters who want a compact magnified optic that does not depend on batteries. The Trijicon ACOG RCO is especially appealing for rifle owners who want a military-pattern setup with proven performance and a red chevron reticle.

Browse our Trijicon optics selection and shop more riflescopes on our site.

For manufacturer details, see Trijicon’s official product page and browse more options in Trijicon’s ACOG lineup.

Details

• Manufacturer Part Number: TA31RCO-A4CP
• MPN: 100226
• Series: ACOG USMC RCO
• Magnification: 4x
• Objective Lens Diameter: 32 mm
• Reticle: Red Chevron
• Illumination: Fiber Optics / Tritium
• Platform: M16A4 (20 in Barrel)
• Eye Relief: 1.5 in
• Field of View: 36.8 ft at 100 yds
• Exit Pupil: 8.1 mm
• Length: 5.8 in
• Weight: 15.1 oz
• Mount Included: TA51 Flattop Mount
• Color: Black