Trijicon ACOG 3x24 Compact Scope with Low Red Crosshair Reticle

The Trijicon ACOG 3x24 compact scope with low red crosshair reticle is a battle-proven magnified optic purpose-built for shooters who demand reliability in harsh conditions. This fixed 3-power scope combines two independent illumination sources—fiber optics for daylight and tritium for low-light shooting—so your reticle stays visible whether you're shooting at noon or in near-total darkness. No batteries to manage, no electronics to fail: Trijicon engineered the ACOG to keep working when it matters most.

The compact 24mm objective and 3x magnification strike a balance between light gathering and a wide field of view, making this scope effective for patrol, tactical training, and mid-range hunting applications. The rugged forged 7075-T6 aircraft-grade aluminum housing is virtually indestructible, and the low-profile Q-LOC mount uses Trijicon's tool-less clamping system for fast, repeatable zero. The reticle features Bindon Aiming Concept (BAC) geometry optimized for 55-grain .223 rounds, with bullet drop compensation built in. Windage and elevation adjustments are external and infinitely repeatable at 0.5 MOA per click.

The ACOG's mounting bosses let you add a red-dot sight (RMR mount sold separately) for close-range engagement while keeping the magnified reticle ready for distance. Made in the USA, this scope delivers the legendary durability and combat-tested performance that has made the ACOG the magnified optic of choice for military and professional shooters worldwide.

Key Features

• Dual illumination: fiber optics and tritium for any lighting condition
• Fixed 3x magnification with 24mm objective for wide field of view
• Low red crosshair reticle with Bindon Aiming Concept (BAC) geometry
• Bullet drop compensation calibrated for .223 55-grain rounds
• Forged 7075-T6 aircraft-grade aluminum construction
• Tool-less Q-LOC mount with spring-loaded retention
• Integrated RMR mounting bosses for secondary red-dot attachment
• External windage and elevation adjusters with lanyard-tethered caps
• Matte black anodized finish
• Made in the USA

Specifications

Frequently Asked Questions

What rifles is the ACOG 3x24 compatible with?

The ACOG mounts to any rifle with a Mil-Spec or NATO Picatinny rail using the included Q-LOC compact mount. The reticle and bullet drop compensation are calibrated for .223 / 55-grain ammunition, making it ideal for AR-15 platforms and other .223 Remington rifles.

Can I add a red dot sight to this scope?

Yes. The ACOG housing has integrated RMR mounting bosses near the eyepiece that allow you to attach a Trijicon RMR red-dot sight using the RM54 mount (both sold separately). This gives you the option of close-range aiming without removing the magnified optic.

How does the dual illumination work, and do I need batteries?

The ACOG uses two battery-free illumination sources: a fiber optic element that gathers ambient light and automatically adjusts brightness, and tritium that glows in low-light and darkness. You never need to install or replace batteries—the scope is always ready to use.

What does the Q-LOC mount provide?

The Q-LOC Technology mount is a tool-less clamping system with a spring-loaded design that maintains zero retention even if the mounting knobs are not fully tightened. It's lightweight, low-profile, mil-spec rated for drop tests, and compatible with any Picatinny rail.