Trijicon TA31D ACOG 4x32 Red Chevron .223/5.56 BDC Rifle Scope

The Trijicon TA31D ACOG delivers combat-proven optical performance with its fixed 4x magnification and illuminated red chevron reticle optimized for .223/5.56 ammunition. This battle-tested optic combines tritium and fiber optic illumination to maintain reticle visibility across all lighting conditions without batteries.

What Makes This Different

Unlike variable power scopes that can fail under stress, the TA31D features a fixed 4x magnification system with no moving parts in the optical train. The dual-illuminated reticle automatically adjusts brightness using ambient light and tritium, eliminating battery dependence that plagues electronic optics. Trijicon's proprietary BAC (Bindon Aiming Concept) allows rapid target acquisition with both eyes open at close range while maintaining precision at distance.

Key Features

• Fixed 4x32mm magnification with 36.8-foot field of view at 100 yards
• Dual-illuminated red chevron reticle with .223/5.56 bullet drop compensator
• Tritium and fiber optic illumination requires no batteries
• Forged aluminum housing with matte black hard-coat anodized finish
• Waterproof to 11 meters and shockproof to withstand .50 BMG recoil
• TA51 flattop mount included for MIL-STD-1913 Picatinny rails
• 15-year tritium warranty and lifetime structural warranty

The TA31D excels in tactical applications where reliability supersedes convenience features. Law enforcement and military units depend on this optic for rapid engagement from 25 to 600 meters. The chevron reticle provides precise holdover points for extended range shots while offering a large aiming point for close quarters work. Temperature extremes from -40°F to +160°F won't affect zero retention or optical clarity.

Technical Specs

• Magnification: 4x fixed power
• Objective lens diameter: 32mm
• Eye relief: 1.5 inches
• Length: 5.8 inches
• Weight: 9.9 ounces
• Reticle: Red chevron with .223/5.56 BDC
• Mount: TA51 flattop mount (included)
• Country of origin: USA

The TA31D represents decades of optical engineering refined through military contracts and field deployment. Professional users choose this ACOG when mission success depends on optical reliability that electronic systems cannot match.