The Trijicon ACOG 4x32mm is a compact, internally adjustable combat riflescope built around Trijicon’s Bindon Aiming Concept (BAC), which lets shooters keep both eyes open for fast, instinctive target acquisition (model 100230). It features an illuminated reticle for use across a range of light conditions, with a red chevron aiming point, calibrated for .223 Rem/5.56 NATO. This is the M4-marked Rifle Combat Optic (RCO) variant issued for the M4/M4A1 carbine.

\n

Key Specifications

\n

\n
• Delivers 4x fixed magnification through a 32mm objective lens.

\n

• Features an illuminated Red Chevron reticle for a fast, repeatable aiming point.

\n

• Reticle is calibrated for .223 Rem/5.56 NATO ballistics.

\n

• Built around Trijicon’s Bindon Aiming Concept (BAC) for both-eyes-open shooting.

\n

• Provides 1.50 in. of eye relief.

\n

• Adjusts in 2 Clicks per Inch @ 100 yds increments for windage and elevation.

\n

• Lenses are multi-coated for improved light transmission.

\n

• Built to the USMC Rifle Combat Optic (RCO) specification.

\n

• Manufactured by Trijicon.

\n

\n
\n

Frequently Asked Questions

\n

Does this Trijicon ACOG need a battery? It depends on the configuration: Trijicon ACOGs use either battery-free fiber-optic/tritium illumination or an LED reticle powered by a single AA battery. Check the listing details for this specific model before ordering.

\n

What caliber is the reticle calibrated for? The reticle is calibrated for .223 Rem/5.56 NATO, matching typical ammunition drop out to several hundred yards.

\n

What magnification and objective size does this ACOG have? This model is a fixed 4x magnification with a 32mm objective lens.

\n

Buy the Trijicon ACOG M4 RCO 4x32mm Red Chevron (.223) Riflescope

\n

Get precise, both-eyes-open aiming with this Trijicon optic, or browse our full gun scopes selection.