Trijicon ACOG RCO 4x32 Red Chevron M16A4

The Trijicon ACOG RCO: Marine-Grade Combat Optics

The TA31RCO represents the gold standard in combat optics—a purpose-built instrument designed to the exact specifications of the United States Marine Corps for the M16A4 rifle system. This is not a compromise design; it is a rifle scope engineered from the ground up for the demands of close-quarters battle and extended-range precision.

Illumination Technology

The ACOG RCO employs a dual-illumination system that sets it apart from conventional optics:

• Fiber optic elements automatically adjust reticle brightness in daylight, matching ambient light conditions without user intervention
• Self-luminous tritium provides constant illumination in total darkness—no batteries required
• The red chevron reticle remains visible and usable in any lighting condition, from bright sunlight to complete darkness

Optical Performance

This 4x32 fixed-power scope delivers:

• Quick target acquisition at close combat ranges with the distinctive chevron reticle pattern
• Enhanced target identification and hit probability out to 800 meters
• Bullet Drop Compensator (BDC) integrated into the reticle for precise holdovers at distance
• Robust, compact design that adds minimal weight to your rifle

Practical Features

• External windage and elevation adjusters require no tools—critical when you need fast, field-expedient corrections
• Integrated mounting bosses allow easy addition of a Trijicon RMR red dot for maximum versatility
• Flattop adapter included for modern AR-platform rifles with Picatinny rails
• Durable construction: Black hardcoat anodized finish resists corrosion and abuse

What's Included

Trijicon includes everything you need: TA51 mount, thumbscrew flattop adapter, killFlash anti-reflection device, Scopecoat protective cover, LENSPEN cleaning tool, lanyard assembly, and complete documentation.

The ACOG RCO is the choice of professional shooters and serious sportsmen who demand reliability when it matters most.