Trijicon ACOG TA31RCO 4x32mm Red Chevron 223 Rifle Scope with TA51 Mount

The Trijicon ACOG TA31RCO is a 4x32mm rifle scope built to the USMC specification for the M16A4 weapon system with a 20-inch barrel. It is intended for AR-15 flattop rifles chambered in 223 Remington and 5.56x45mm NATO, and is mounted with the TA51 flattop mount.

The scope uses an illuminated Red Chevron reticle with a .223/5.56 bullet drop compensator for holdover at range. Illumination combines fiber optics, which adjust brightness to ambient light, with self-luminous tritium that keeps the aiming point visible in total darkness without batteries. Windage and elevation are adjusted with external turrets. The matte black body measures 5.8 inches overall and weighs 15.8 ounces.

The TA31RCO is designed for use with the TA51 flattop mount on AR-15 rifles. Its specifications match the 20-inch barrel M16A4 pattern.

• Magnification: 4x
• Objective: 32mm
• Reticle: Illuminated Red Chevron (.223/5.56 BDC)
• Calibers: 223 Remington, 5.56x45mm NATO
• Mount Type: TA51 Flattop Mount
• Weight: 15.8 oz
• Overall Length: 5.8 in
• Finish: Matte black