The Trijicon ACOG 4×32 M150 Army RCO is the Rifle Combat Optic issued to U.S. Army and Marine Corps shooters, a compact 4x telescopic sight with a tritium- and fiber-optic-illuminated red chevron reticle for aiming in any light condition without relying on a battery. It shares the mechanical and optical design used across the ACOG line, built to maximize hit potential on the M16 platform.

Key Specifications

• Fixed 4x magnification keeps the sight picture consistent for close and mid-range work.
• The 32mm objective lens gathers light for a bright daytime image.
• Reticle type is the illuminated red chevron, lit by fiber optics by day and tritium at night.
• Chambering reference on the reticle is calibrated for .223 REM/5.56 NATO.
• Windage and elevation adjust in 2 clicks per inch at 100 yards.
• Eye relief is rated at 1.50 in.
• Lenses carry a multi-coated finish for improved light transmission.
• Housing is forged 7075-T6 aircraft aluminum, the same construction used across the ACOG line.
• Model designation is the Trijicon ACOG series, part number 100228.

Frequently Asked Questions

Does this ACOG need a battery to stay illuminated? No. The reticle is lit by fiber optics in daylight and tritium at night, so there is no battery to change or fail.

What rifles is the reticle calibrated for? The chevron and its bullet-drop reference points are calibrated for .223 Rem/5.56 NATO on M16-family rifles.

Can I mount this ACOG on a Picatinny rail? The ACOG line is designed around M1913 Picatinny-compatible mounts; confirm the mount included with this listing before ordering separate rings.

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