Trijicon 5.5x50 ACOG Rifle Scope - Matte Finish, .308 Red Chevron Reticle with Picatinny Adapter

The Trijicon 5.5x50 ACOG rifle scope is a combat-proven optic built for precision and speed on the rifle range or in the field. This fixed-power scope combines the legendary Bindon Aiming Concept with a red chevron reticle calibrated for .308 ammunition, giving you a fast, intuitive sight picture whether you're running drills at 100 yards or reading wind at distance. The 5.5x magnification and 50mm objective strike a practical balance—enough glass to stretch your effective range without sacrificing light transmission or adding unnecessary weight to your setup.

Trijicon's hybrid illumination system pairs fiber optics for daylight brightness with tritium for low-light operation, so your reticle stays visible in harsh sun or deep shadow without batteries. The chevron design works double duty: the tip zero at 100 meters serves as your primary aiming point, while the width of the base (5.53 MOA at 100 meters, roughly 19 inches at 300 meters) lets you estimate range on silhouette targets. This built-in ballistic tool has made the ACOG a favorite among serious shooters and professionals for decades. The scope ships with a Picatinny-compatible flattop adapter, scope cover, lens cleaning tool, and lanyard for the turrets, so you're ready to mount and shoot out of the box.

At 25.6 ounces with mount and 12 inches long, this is a compact, durable piece of gear. The forged aluminum housing feels like it'll outlast your rifle, and the 2.2-inch eye relief gives you plenty of wiggle room behind the gun. Whether you're hunting medium to long range, running a competition course, or simply want a no-nonsense fixed-power scope that works when it matters, the Trijicon ACOG delivers the kind of reliability that justifies its reputation.

Key Features

• 5.5x magnification with 50mm objective for long-range clarity and light gathering
• Red chevron reticle calibrated for .308 with built-in range estimation
• Hybrid fiber-optic and tritium illumination—no batteries required
• Bindon Aiming Concept for faster target acquisition and intuitive aiming
• Bullet drop compensator for extended-range shooting
• Forged aluminum construction for durability and reliability
• Includes Picatinny flattop adapter, scope cover, lens pen, and turret lanyard
• Compact 12-inch length and 25.6 oz weight (with mount)

Specifications

Frequently Asked Questions

What's included in the box with the Trijicon ACOG?

The scope comes ready to mount with a Picatinny-compatible flattop adapter (TA51), plus a scope cover, LensPen cleaning tool, lanyard assembly for the adjustment turret caps, Trijicon logo sticker, user manual, and warranty card.

Is this scope compatible with my AR or modern rifle platform?

Yes. The scope ships with a TA51 flattop adapter that mounts directly to Picatinny rails found on most modern AR-platform rifles and other tactical rifle systems. If your rifle uses a different mounting system, you may need an alternative mount—contact us for compatibility questions.

How does the chevron reticle work for range estimation?

The tip of the chevron is your zero point at 100 meters. The width of the chevron base measures 5.53 MOA at 100 meters, which equals roughly 19 inches at 300 meters. You can use this known width to estimate the range of silhouette targets and make holdover adjustments accordingly.

Does the ACOG work without batteries or electricity?

Yes. The scope uses a hybrid illumination system combining fiber optics for daylight brightness and tritium for low-light conditions. No batteries are required—the reticle will remain illuminated in any light condition.