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Trijicon ACOG® 4x32 BAC USMC RCO Riflescope - M855 / A4 / M4

Red Horseshoe/Dot Reticle, LaRue Tactical® LT799 Mount, Tritium / Fiber Optics Illuminated

OVERVIEW

The TA31USN-M855 is an Advanced Combat Optical Gunsight (ACOG) designed for either the M16A4 weapon system (20” barrel) or the M16M4 (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. The unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 1,000 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31USN-M855 features external adjusters, making it waterproof up to 11m without the caps.
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INCLUDES

    LaRue Tactical Mount (LT799)
    2 Assemblies 1/10 Miliradian External Adjusters
    2 External Adjuster Caps
    Lanyard Assembly for Adjuster Caps (TA71E)
    Scopecoat (TA96)
    LENSPEN (TA56)
    RCO Manual
    Warranty Card

SKU: TA31-D-100582

RETAIL: $1,724.00

FIND A DEALER
The TA31USN-M855 is an Advanced Combat Optical Gunsight (ACOG) designed for either the M16A4 weapon system (20” barrel) or the M16M4 (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. The unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 1,000 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31USN-M855 features external adjusters, making it waterproof up to 11m without the caps.
ALWAYS ON, ALWAYS READY

ALWAYS ON, ALWAYS READY

Most ACOG® models are battery free, featuring a tritium/fiber optic illuminated reticle that automatically adjusts the brightness based on available light.

TAKE CONTROL

TAKE CONTROL

Several ACOG models are designed with a user adjustable brightness setting powered by a single AA battery. The 3.5x35 LED and 4x32 LED models both offer six adjustable brightness settings.

RUGGED, RELIABLE HOUSING DESIGN

RUGGED, RELIABLE HOUSING DESIGN

Fixed-power design allows for minimal moving parts to create a nearly indestructible sighting system.

“BOTH EYES OPEN” DESIGN

“BOTH EYES OPEN” DESIGN

“Both eyes open” shooting using The Bindon Aiming Concept (BAC) allows for improved situational awareness.

OUTSTANDING CLARITY

OUTSTANDING CLARITY

The quality of the glass and multi-coated lenses maximize light-gathering capabilities and clear field of view with zero distortion.

EXACT TARGET DISTANCES & HOLDS

EXACT TARGET DISTANCES & HOLDS

Most ACOG models feature a bullet drop compensating and target-ranging reticle for decisive aiming.

COMBAT PROVEN

COMBAT PROVEN

No other magnified optic has been used more in combat than the ACOG.

SHOCK-RESISTANT

SHOCK-RESISTANT

Proven to withstand recoil from a .22LR to a .50BMG and everything in between. Easily passes U.S. Military drop test requirements.

WATERPROOF

WATERPROOF

Exceptional waterproof performance that exceeds military standards. Dry nitrogen-filled to eliminate fogging. This optic is tested to withstand and perform in extreme cold and heat with dry-nitrogen filled housing that mitigates fogging.

Weight
14.2 oz. (402.56g)
Magnification
4x
Objective Size
32mm
Reticle Pattern
Horseshoe Dot
Day Reticle Color
Red
Night Reticle Color
Red
Bullet Drop Compensating (BDC)
Yes
Caliber
0.223 (14.5 or 20 in. barrel)
Bindon Aiming Concept (BAC)
Yes
Illumination Source
Fiber Optics & Tritium
Power Source
Fiber Optics & Tritium
Eye Relief
1.5 in. (38.1mm)
Exit Pupil
0.32 in. (8.13mm)
Field of View (degrees)
Field of View (feet)
36.8 ft. @ 100 yds. (11.22m @ 100m)
Mount
LT799
Housing Material
Forged Aluminum
Finish
Matte Black

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