The TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the M4 and M4A1 weapon system (14.5" 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. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).
Features
- Forged 7075-T6 aircraft aluminum alloy housing
- Flat-Top Mount
- Mounting system is dedicated to Mil-Std 1913 Picatinny rails
- USMC Rifle Combat Optic (RCO)
- The RCO (Rifle Combat Optic) is designed for the M16M4 with a 14.5" barrel.
- Included in the package are a specialized thumb-screw and a Tenebraex killFlash ARD (Anti Reflective Device)
- Dual Illumination Red USMC Reticle Calibrated for 5.56 NATO
- This self-illuminated reticle features fine stadia at 3, 6, and 9 o’clock.
- An illuminated chevron indicates your point of aim.
- Hash-marks on the 6 o’clock stadia provide hold-over points for long-range target acquisition.
- Hash-marks on the horizontal stadia provide hold-off points for windage correction.
- Tritium/fiber-optics based illumination technology provides the chevron with a brilliant red glow under low-light conditions.
Specifications
| Magnification | 4x |
| Objective Size (mm) | 32 |
| Bullet Drop Compensator | Yes |
| Length (in) | 6.7 in. (with ARD) |
| Weight (oz) | 15.8 oz. (with mount and ARD) |
| Illumination Source | Fiber Optics & Tritium |
| Reticle Pattern | Chevron w/ Target Reference System |
| Day Reticle Color | Red |
| Night Reticle Color | Red |
| Calibration | 0.223 (14.5 in. barrel) |
| Bindon Aiming Concept | Yes |
| Eye Relief (in) | 1.5 |
| Exit Pupil (mm) | 8 |
| Field of View (Degrees) | 7 |
| Field of View @ 100 yards (ft) | 36.8 |
| Adjustment @ 100 yards (clicks/in) | 2 |
| Mount Comes With | Flattop Thumbscrew Mount (TA51) |
| Housing Material | Forged Aluminum |
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