The TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the USMC's M16A4 weapon system (20‚Ä barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps.

Note: Trijicon Optics are not returnable for any reason.
Please contact Trijicon directly for warranty repair or replacement issues.

Features and Specifications:
Forged Aluminum Housing
Magnification: 4x
Objective Size: 32mm
Reticle: Dual Illuminated Red Chevron
Bindon Aiming Concept (BAC): Yes
Bullet Drop Compensating(BDC): Yes
Power Source: Fiber Optics and Tritium
Adjustment: 4 Clicks per Inch at 100 yds
Eye Relief: 1.5"
Field of View: 36.8' at 100 yds
Weight: 15.8 oz
Mount: TA51 Flattop Thumbscrew Mount
Matte Black Finish

Note: Trijicon Optics are not returnable for any reason.
Please contact Trijicon directly for warranty repair or replacement issues.