Description
Trijicon ACOG 4×32 Riflescope with RMR Type 2, Green .223 Chevron Reticle, 3.25 MOA Red Dot, Black
The Trijicon ACOG 4×32 with RMR Type 2 pairs a green .223 chevron reticle with a separate 3.25 MOA red dot. The black TA31-D-100548 package includes the magnified ACOG, top-mounted RMR, and a thumbscrew mount.
Green Chevron Reticle
The green ACOG reticle and red RMR dot provide two visually distinct sight pictures. Both optics are included, with battery-free illumination in the ACOG and automatic LED brightness in the RM01 RMR Type 2.
An open chevron gives the sight picture a distinct pointed center without filling it with a solid triangle. The additional ballistic markings belong to this particular reticle, so the model designation matters as much as its color when comparing ACOGs.
Battery-Free Fiber Optics and Tritium
Fiber optics collect available light to illuminate the reticle during the day, while tritium provides illumination in low light. You do not need to switch the scope on or keep a spare battery for its reticle. Brightness responds to available light rather than a manual dial.
The reticle remains etched into the optical system, so its pattern is not created solely by illumination. This gives you a visible reference even when the illuminated portion is less prominent against the background. The scope itself has no battery compartment.
A Separate RMR Type 2 Red Dot
The included RM01 RMR Type 2 provides a 3.25 MOA red dot in a non-magnifying view. This open-emitter optic adjusts brightness automatically; it is not the manually adjustable RM06. Its CR2032 battery is separate from the ACOG illumination system.
The RMR sits above the ACOG in this factory combination. You receive two separate optics rather than a scope with a switchable magnification setting. The RMR battery is accessed from underneath, so you must remove the optic from its mount to replace the battery.
Compact Fixed-Power Construction
The scope combines fixed 4x magnification with a 32 mm objective lens. Its forged 7075-T6 aluminum housing is sealed and nitrogen-filled, protecting the multi-coated optics. It has a 7-degree field of view and an exit pupil of approximately 8 mm.
Included Mount and Fit
The included TA51-style thumbscrew mount attaches to a compatible flattop rail. The ACOG uses a dedicated mounting base rather than conventional riflescope rings. It has a relatively short eye relief of 1.5 inches, so check your available rail space and normal viewing position before choosing a mount.
Details
- Model / Manufacturer Part Number: TA31-D-100548
- Magnification: Fixed 4x
- Objective Lens: 32 mm
- Reticle: Green chevron
- Reticle Calibration / Configuration: .223 / 5.56
- Scope Illumination: Fiber optics and tritium
- Scope Battery: Not required
- Scope Brightness: Ambient-light response through fiber optics; tritium in low light
- Eye Relief: 1.5 in.
- Angular Field of View: 7 degrees
- Exit Pupil: Approximately 8 mm
- Scope Adjustment: 1/2 MOA per click
- Housing: Forged 7075-T6 aluminum
- Finish: Black
- Mount / Hardware: TA51-style thumbscrew flattop mount included
- Secondary Optic: RM01 RMR Type 2, automatic-brightness LED
- Secondary Reticle: 3.25 MOA red dot
- Secondary Battery: CR2032
- UPC: 719307311763








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