The Trijicon ACOG 3.5x35 rifle scope is a proven combat and hunting optic built to run hard in the field. This magnified optic combines a compact 3.5x magnification with a 35mm objective lens, delivering a bright sight picture across varying light conditions—daytime performance comes from fiber-optic light gathering, while tritium provides reliable illumination after dark. The green horseshoe reticle with Target Reference System is specifically calibrated for .223/5.56 rifles and extends your ranging capability out to 1000 meters, making it equally at home on a patrol rifle, hunting platform, or dedicated precision build.

The ACOG's design philosophy is straightforward: dependable optics without complexity. The forged aluminum housing keeps weight down to just 14 ounces, so it won't fatigue you during long carries or competitions. With 2.4 inches of eye relief and a 10mm exit pupil, it tolerates shooting position variation and works behind body armor or tactical gear. The reticle adjustment system delivers 3 clicks per inch at 100 yards, letting you dial precise corrections without unnecessary fiddling. Field of view is tight at 5.5 degrees (28.9 feet at 100 yards), keeping your sight picture focused where it counts.

This package arrives ready to mount on any Picatinny rail platform—the included flat-top adapter (TA51) handles AR platforms with military-spec carry handles. You also get a protective scopecoat, lens pen, lanyard for the adjustment caps, and the full Trijicon manual. It's the kind of glass that saw real use in the field before it landed on store shelves, which is why it's trusted by professionals and serious shooters alike.

Key Features

• 3.5x magnification with 35mm objective for bright, wide field of view
• Green horseshoe reticle with Target Reference System, calibrated for .223/5.56 out to 1000 meters
• Hybrid illumination: fiber optics for day, tritium for night—no batteries required
• Forged aluminum housing, matte finish; 14 ounces, 8 inches long
• 2.4-inch eye relief and 10mm exit pupil for flexible shooting position
• Flat-top Picatinny adapter included; works on AR platforms with carry handles
• Reticle adjustment: 3 MOA clicks per inch at 100 yards
• Complete package: scope coat, lens pen, lanyard, manual, and stickers included

Specifications

Magnification	3.5x
Objective Lens Diameter	35mm
Length	8 inches
Weight	14 ounces
Eye Relief	2.4 inches
Exit Pupil	10mm
Field of View	5.5 degrees (28.9 feet @ 100 yards)
Adjustment (MOA)	3 clicks per inch @ 100 yards
Reticle Pattern	Horseshoe with Target Reference System
Reticle Color	Green (day and night)
Calibration	.223/5.56
Illumination	Fiber optics (day) and tritium (night)
Housing Material	Forged aluminum
Mount Type Included	Flat-top Picatinny adapter (TA51)

Frequently Asked Questions

Is the Trijicon ACOG 3.5x35 compatible with my AR-15?

Yes, provided your rifle has a flat-top receiver with a Picatinny rail. The included TA51 flat-top adapter mounts directly to AR platforms equipped with military-style carry handles. If your rifle uses a free-floating upper without a carry handle, you'll need a separate Picatinny rail system.

Does this scope need batteries?

No. The ACOG uses a hybrid illumination system: fiber optics gather ambient light during the day, and tritium provides automatic illumination at night. There are no batteries to replace or charge, which is a major reliability advantage in the field.

What's included in the box?

You get the scope, the flat-top Picatinny adapter (TA51), a protective scopecoat, a lens pen, a lanyard for the adjustment caps, the ACOG manual, a warranty card, and a Trijicon logo sticker.

What reticle calibration should I expect for my rifle?

The green horseshoe reticle with Target Reference System is specifically calibrated for .223/5.56 rifles and extends ranging capability to 1000 meters. The reticle is designed to aid in holdover and windage adjustments across that distance spectrum.