The Trijicon Compact ACOG 3×24 rifle scope (Trijicon part no. TA50-C-400351) is a fixed 3x magnification optic built in a low-height configuration with an illuminated red crosshair reticle calibrated for .223 55gr ammunition. This ACOG uses dual, battery-free illumination, combining fiber optics that adjust to ambient light with a tritium-phosphor lamp that glows in low-light conditions, so the reticle stays visible without ever needing a battery change. The forged 7075-T6 aircraft-grade aluminum housing makes this one of the most widely fielded magnified optics in modern military service, giving shooters a rugged, dependable sight for duty, competition, or range use.

Key Specifications

• Fixed 3x magnification with a low-height mounting configuration.
• Illuminated red crosshair reticle calibrated for .223 caliber, 55 grain ammunition.
• Dual, battery-free illumination combines fiber optics with a tritium-phosphor lamp.
• Forged 7075-T6 aircraft-grade aluminum housing built for combat-level durability.
• Integrated mounting bosses near the eyepiece allow easy addition of a Trijicon RMR.
• 1.35 lb shipping weight keeps the optic compact for a fixed-power mounted sight.

Frequently Asked Questions

Does this ACOG need a battery? No, illumination comes from fiber optics and tritium, with no battery required.

What caliber is the reticle calibrated for? The red crosshair holdovers are calibrated for .223 caliber, 55 grain ammunition.

Is this the low-height or standard-height mount? This is the low-height configuration.

Buy the Trijicon Compact ACOG 3×24 Rifle Scope

One of the most widely fielded magnified optics in modern military service, the ACOG 3×24 delivers rugged, battery-free illumination in a low-height mount. Order it from our Lubbock, Texas gun shop for fast, insured shipping, and see the rest of the Trijicon gun scopes lineup.