Acog 223 Bdc 4X32Mm Fxd Red Chevron Fde W/Ta51 & Rmr Type 2

The Trijicon ACOG 4x32 with .223 BDC reticle is a 4x magnification optic built for mid-range accuracy on the AR platform. Designed around a red chevron reticle with bullet drop compensation calibrated to .223/5.56 out to 800 meters, this scope pairs a fixed 4x sight picture with an integrated Trijicon RMR Type 2 red dot (3.25 MOA) mounted on top via the included TA51 flattop adapter. It's a solid choice for shooters who want both precision aiming and a close-quarters backup sight without fumbling between optics.

What sets the ACOG apart in this class is its fiber optic and tritium dual illumination—no batteries required for the main scope. The reticle brightness automatically adjusts to ambient light, keeping your aiming point visible whether you're shooting in bright sun or dim conditions. The 1.5-inch eye relief and 36.8-foot field of view at 100 yards suit intermediate-distance work. Build quality is military-spec: forged aluminum housing, matte black finish, dry nitrogen-filled to prevent fogging, and tested to withstand recoil from .22LR all the way up. Weight runs 15.1 ounces.

This combo arrives with the RMR Type 2, TA51 mount, lens pen, lanyard assembly for the adjuster caps, and the manual. If you shoot .223/5.56 and want a proven, low-maintenance optic that delivers both magnified and red-dot capability from one mounting platform, the ACOG 4x32 BDC with RMR is a straightforward, battle-tested option.

Key Features

• 4x32mm magnification with .223 BDC reticle compensating for bullet drop to 800 meters
• Dual fiber optic and tritium illumination—automatic brightness adjustment, no battery needed
• Integrated Trijicon RMR Type 2 red dot sight (3.25 MOA) included and pre-mounted on TA51 adapter
• Bindon Aiming Concept (BAC) enables both-eyes-open shooting for better situational awareness
• Fixed magnification and minimal internal parts reduce failure points
• Forged aluminum construction, dry nitrogen-filled, exceeds military waterproof standards
• Proven shock resistance and drop-test durability

Specifications

Frequently Asked Questions

What caliber is this ACOG scope set up for?

This model is calibrated for .223/5.56 NATO. The BDC reticle provides bullet drop compensation specifically for those cartridges out to 800 meters.

Does the ACOG need batteries to work?

The main ACOG scope does not require batteries. The reticle is illuminated by fiber optics and tritium, which automatically adjust brightness based on available light. The RMR Type 2 red dot mounted on top operates independently and may have its own power requirements—refer to the RMR manual for details.

What's included in the box?

The package includes the ACOG scope with the RMR Type 2 red dot pre-mounted, the TA51 flattop thumbscrew adapter, a lens pen, lanyard assembly for adjuster caps, Trijicon logo sticker, manual, and warranty card.

Will this mount on my AR-15?

The TA51 flattop adapter is designed for Picatinny rail systems, which are standard on most AR-15 flat-top receivers. Confirm your rifle has a flattop rail or compatible mounting surface before purchase.