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Trijicon ACOG 4x32 USMC RCO Rifle Scope - M16A4
Trijicon ACOG 4x32 USMC RCO Rifle Scope - M16A4
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The TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the USMC's M16A4 weapon system (20” 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).
INCLUDES:
- Thumbscrew Flattop Adapter (TA51)
- Thumb Screw (for mounting to carry handle) (TA53A)
- killFlash Anti-Reflection Device (TA91)
- Scopecoat (TA96)
- LENSPEN (TA56)
- Lanyard Assembly for Adjuster Caps (TA71E)
- Trijicon Logo Sticker (PR15)
- RCO Manual
- Warranty Card
SPECIFICATIONS:
- Finish: Matte Black
- Waterproof: Yes
- Weight: 15.1 Ounce
- Power Variability: Fixed
- Minimum Power: 4x
- Maximum Power: 4x
- Adjustment Type: Click
- Exposed Turrets: No
- Finger Adjustable Turrets: Yes
- Turrets Resettable to Zero: No
- Zero Stop: No
- Turret Height: Medium
- Fast Focus Eye Piece: No
- Lens Coating: Fully Multi-Coated
- Warranty: Limited Lifetime
- Rings Included: Yes
- Sun Shade Included: No
- Lens Covers Included: No
- Reticle: Chevron
- Reticle Construction: Glass Etched
- Illuminated Reticle: Yes
- Holdover Reticle: Yes
- Reticle Focal Plane Location: Second Focal Plane - SFP
- Parallax Adjustment: No
- Fog Proof: Yes
- Shock Proof: Yes
- Overall Length: 5.8 Inches
- Objective Lens Diameter: 32 Millimeter
- Eye Relief: 1.5” Inches
- Exit Pupil Diameter: 8 Millimeter
- Field of View @ 100 Yards Minimum Power: 36.75 Feet
- Field of View @ 100 Yards Maximum Power: 36.75 Feet
- Country of Origin: United States of America
- SKU: TA31RCO-A4CP
- UPC: 719307302068
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Perfect match for my M16A4 clone.
I was surprised with glass clarity and build quality.
Very fast shipping to CZ.
There are two drawbacks, which can be inconvenient surprise for people who don't know about them.
1. Very short eye relief
2. Right side of reticle is blurry, but that depends on your eye sight.
From Trijicon's FAQ:
The right hand side of the crosshair is blurry. Is this normal?
Yes. The reticle pattern in the ACOG is formed by removing highly reflective metal from a prism mirror. This mirror is at about a 45-degree angle inside the gun sight. This means that the left side of the reticle is closer to the eye than the center of the reticle and the right side of the reticle is further from the eye. The result- the right side of the reticle is focused beyond infinity which can cause distortion on the right side of the reticle. The perceived distortion will be more or less depending on an individual's eyesight. The left side of the reticle is unaffected because the human eye has no difficulty focusing on a closer object. This in no way detracts from the performance of the scope. The image of the target area is not affected. Only the right hand side horizontal reticle line is blurry. This construction is required to achieve a parallax free vertical center of the scope, which allows the built in ranging on the reticle pattern.