The Trijicon ACOG 4x32 Riflescope (100215) is a fixed 4-power, 32mm combat optic machined from a single forged block of 7075-T6 aluminum, delivering a dual-illuminated red chevron ballistic reticle calibrated for 5.56 NATO and .223 Remington out to 800 meters with zero batteries required. Designed for AR-platform carbine shooters, military and law enforcement rifle users, and serious long-range hunters who want a battle-proven fixed 4x optic for .223 and 5.56mm rifles with tritium and fiber optic dual illumination, the 100215 includes the TA51 flattop thumbscrew mount and carries Trijicon's limited lifetime warranty.
Key Features
- Part number: 100215, also referenced as TA31F
- Magnification: 4x fixed
- Objective diameter: 32mm
- Reticle: Red chevron .223 ballistic BDC, dual illuminated
- Illumination: Tritium phosphor and fiber optic, no batteries required
- Reticle zero: Chevron tip at 100 meters
- Chevron base width: 5.53 MOA, 19 inches at 300 meters
- BDC range calibration: 5.56 NATO and .223 Remington, flattop rifles, to 800 meters
- Eye relief: 1.5 inches
- Field of view at 100 yards: 36.8 feet
- Exit pupil: 8.1mm
- Adjustment per click: 0.5 MOA
- Lens coatings: Multi-coated
- Housing: Forged 7075-T6 aluminum, single piece
- Finish: Matte black
- Mount included: TA51 flattop thumbscrew, fits MIL-STD-1913 Picatinny rail
- Length: 5.8 inches
- Weight: 9.9 oz without mount
- Waterproof and fogproof: Yes
- Made in the USA
- Warranty: Limited lifetime
Special Features
- The tritium and fiber optic dual illumination system requires zero batteries, using ambient daylight to power the fiber optic element and stored tritium for low-light and night use, so the reticle stays lit in any environment without power management.
- The Bindon Aiming Concept design allows both-eyes-open shooting at 4x, letting the dominant eye see the magnified reticle while the non-dominant eye maintains full situational awareness for fast target acquisition at close range and distance simultaneously.
- The BDC stadia lines below the chevron provide calibrated holdover points from 100 to 800 meters for standard 5.56 NATO loads, eliminating manual turret adjustments during rapid multi-distance engagements.
- The single-forged aluminum housing eliminates the structural joints and seams found in machined tube designs, giving the optic higher resistance to impact and rail flex without adding weight.
Practical Benefits
- The 4x fixed magnification and 36.8-foot field of view strike the balance between close-quarters speed and mid-range precision that makes the ACOG the most widely issued combat optic in U.S. military history.
- The included TA51 flattop mount installs directly to any MIL-STD-1913 Picatinny rail without tools or additional hardware, putting the 100215 ready to zero straight out of the box on any AR-platform carbine.
- Your 100215 gives you a battery-free, battle-proven 4x optic with a purpose-calibrated .223 BDC reticle that works the moment you mount it and keeps working regardless of temperature, battery condition, or lighting environment.
The Trijicon ACOG 4x32 Riflescope (100215) with its dual-illuminated red chevron reticle is a proven platform for AR-platform carbine shooters, law enforcement rifle users, and serious hunters who demand a no-battery fixed-power optic with a purpose-built .223 ballistic reticle that performs from close range out to 800 meters.
| MANUFACTURER | TRIJICON |