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Trijicon
The Trijicon 4x32 ACOG rifle scope with matte red chevron reticle is the combat-proven optic that defined a generation of infantry and patrol rifles. Built to exacting U.S. Marine Corps specifications for the M16A4 platform, this advanced combat optical gunsight delivers the reliability, speed, and versatility that professional operators and serious shooters demand. Whether you're running a vintage A4 or a modern AR platform via the included Picatinny adapter, the TA31RCO combines two-source illumination—fiber optics for daylight and self-luminous tritium for darkness—so your aiming point is always visible without batteries.
The red chevron reticle is purpose-built for rapid target acquisition and positive identification from close quarters out to 800 meters, with drop compensation calibrated for the 20-inch barrel and 5.56 NATO. The Bindon Aiming Concept lets you keep both eyes open and engaged, maintaining situational awareness while acquiring and engaging targets. At 4x magnification with a wide 7-degree field of view, you get the speed of a close-quarters optic paired with the reach to press advantages downrange. The forged aluminum housing is tough—waterproof to 11 meters without lens caps, and external windage and elevation adjusters need no tools to operate.
This package includes everything you need to deploy: the TA51 Picatinny rail adapter (flattop thumbscrew mount) for modern AR-15s, a killFLASH anti-reflection device to reduce glint, protective scopecoat, lens cleaning pen, adjuster cap lanyard, and manual. Weighing 15.8 ounces with mount and anti-reflection device, the 6.7-inch length keeps your sight picture compact and your rifle balanced. The integrated RMR mounting bosses let you layer a micro red dot for close work if you choose.
If you run a modern Picatinny rail system instead of a carry handle, the included TA51 adapter mounts securely. The ACOG's reputation for rock-solid reliability in demanding conditions—from urban operations to field hunting—is earned, not marketed. This is the optic that proved itself in the real world, not a lab.
| Magnification | 4x |
| Objective Lens Diameter | 32mm |
| Length (with anti-reflection device) | 6.7 inches |
| Weight (with mount and anti-reflection device) | 15.8 oz. |
| Illumination Source | Fiber optics and self-luminous tritium |
| Reticle Pattern | Red chevron with target reference system |
| Reticle Color (day/night) | Red |
| Calibration | 0.223 (20-inch barrel) |
| Eye Relief | 1.5 inches |
| Exit Pupil | 8mm |
| Field of View | 7 degrees (36.8 feet @ 100 yards) |
| Windage/Elevation Adjustment | 2 clicks per inch @ 100 yards |
| Housing Material | Forged aluminum |
| Mount Included | TA51 Picatinny flattop thumbscrew adapter |
| Waterproof Rating | 11 meters (without lens caps) |
| Bindon Aiming Concept | Yes |
Yes. This package includes the TA51 Picatinny flattop thumbscrew adapter, which mounts the ACOG to standard AR-15 top rails. The scope is calibrated for the M16A4's 20-inch barrel and 5.56 NATO round, making it ideal for 16- to 20-inch AR carbines and rifles.
No. The ACOG uses dual illumination: fiber optics capture and self-adjust to ambient daylight, and self-luminous tritium glows in total darkness. There are no batteries to replace, charge, or fail.
The package includes the TA31RCO scope with TA51 Picatinny adapter mount, killFLASH anti-reflection device, protective scopecoat, lens cleaning pen (LENSPEN), adjuster cap lanyard assembly, user manual, warranty card, and Trijicon logo sticker.
Yes. The ACOG features integrated RMR mounting bosses built into the housing near the eyepiece, allowing you to add a compatible micro red dot sight for close-range shooting in conjunction with the main reticle.
Trijicon
The Trijicon 4x32 ACOG rifle scope with matte red chevron reticle is the combat-proven optic that defined a generation of infantry and patrol rifles. Built to exacting U.S. Marine Corps specifications for the M16A4 platform, this advanced combat optical gunsight delivers the reliability, speed, and versatility that professional operators and serious shooters demand. Whether you're running a vintage A4 or a modern AR platform via the included Picatinny adapter, the TA31RCO combines two-source illumination—fiber optics for daylight and self-luminous tritium for darkness—so your aiming point is always visible without batteries.
The red chevron reticle is purpose-built for rapid target acquisition and positive identification from close quarters out to 800 meters, with drop compensation calibrated for the 20-inch barrel and 5.56 NATO. The Bindon Aiming Concept lets you keep both eyes open and engaged, maintaining situational awareness while acquiring and engaging targets. At 4x magnification with a wide 7-degree field of view, you get the speed of a close-quarters optic paired with the reach to press advantages downrange. The forged aluminum housing is tough—waterproof to 11 meters without lens caps, and external windage and elevation adjusters need no tools to operate.
This package includes everything you need to deploy: the TA51 Picatinny rail adapter (flattop thumbscrew mount) for modern AR-15s, a killFLASH anti-reflection device to reduce glint, protective scopecoat, lens cleaning pen, adjuster cap lanyard, and manual. Weighing 15.8 ounces with mount and anti-reflection device, the 6.7-inch length keeps your sight picture compact and your rifle balanced. The integrated RMR mounting bosses let you layer a micro red dot for close work if you choose.
If you run a modern Picatinny rail system instead of a carry handle, the included TA51 adapter mounts securely. The ACOG's reputation for rock-solid reliability in demanding conditions—from urban operations to field hunting—is earned, not marketed. This is the optic that proved itself in the real world, not a lab.
| Magnification | 4x |
| Objective Lens Diameter | 32mm |
| Length (with anti-reflection device) | 6.7 inches |
| Weight (with mount and anti-reflection device) | 15.8 oz. |
| Illumination Source | Fiber optics and self-luminous tritium |
| Reticle Pattern | Red chevron with target reference system |
| Reticle Color (day/night) | Red |
| Calibration | 0.223 (20-inch barrel) |
| Eye Relief | 1.5 inches |
| Exit Pupil | 8mm |
| Field of View | 7 degrees (36.8 feet @ 100 yards) |
| Windage/Elevation Adjustment | 2 clicks per inch @ 100 yards |
| Housing Material | Forged aluminum |
| Mount Included | TA51 Picatinny flattop thumbscrew adapter |
| Waterproof Rating | 11 meters (without lens caps) |
| Bindon Aiming Concept | Yes |
Yes. This package includes the TA51 Picatinny flattop thumbscrew adapter, which mounts the ACOG to standard AR-15 top rails. The scope is calibrated for the M16A4's 20-inch barrel and 5.56 NATO round, making it ideal for 16- to 20-inch AR carbines and rifles.
No. The ACOG uses dual illumination: fiber optics capture and self-adjust to ambient daylight, and self-luminous tritium glows in total darkness. There are no batteries to replace, charge, or fail.
The package includes the TA31RCO scope with TA51 Picatinny adapter mount, killFLASH anti-reflection device, protective scopecoat, lens cleaning pen (LENSPEN), adjuster cap lanyard assembly, user manual, warranty card, and Trijicon logo sticker.
Yes. The ACOG features integrated RMR mounting bosses built into the housing near the eyepiece, allowing you to add a compatible micro red dot sight for close-range shooting in conjunction with the main reticle.
