Trijicon ACOG 4×32 BAC Rifle Scope .223/5.56 BDC Red Chevron with RMR
Features
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Dual‑Illuminated, Battery‑Free ACOG Body: Fiber optics regulate reticle brightness in daylight; tritium lamp glows in low/no light—no batteries required in the ACOG.
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4× Fixed Combat Optic w/ Bindon Aiming Concept™: Enables both‑eyes‑open speed at CQB distances while retaining precise 4× aiming for intermediate/long carbine shots.
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.223/5.56 BDC Red Chevron Reticle: Zero chevron tip at 100 m; descending stadia deliver calibrated holds for common 5.56/.223 trajectories. Chevron base subtension can be used for range estimation on silhouette targets.
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Factory‑Mounted Trijicon RMR® Type 2 Mini Reflex (3.25 MOA Red Dot): Instant 1× heads‑up sighting for close engagements without shifting cheek weld.
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Rugged Forged 7075‑T6 Aluminum Housing: Combat‑proven durability—shock, recoil, weather, and impact resistant; sealed and fog‑proof.
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External Tool‑Less Adjusters: ½ MOA windage & elevation clicks; no turret caps to lose.
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Wide Field of View: 7° (36.8 ft @ 100 yd) helps maintain situational awareness on movers.
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Mission‑Ready Mounting: Ships with TA51 flattop Picatinny thumbscrew adapter; RMR already aligned over the ACOG.
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Made in USA & Backed by Trijicon Warranty. (Factory & top‑tier dealer data verified.)
Technical Specifications for Trijicon ACOG 4×32 BAC Rifle Scope .223/5.56 BDC Red Chevron with RMR
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Specification
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Details
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Manufacturer
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Trijicon
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Model / MPN
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TA31‑D‑100549 / 100549
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SKU
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TA31‑D‑100549
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UPC
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719307311770
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Country of Origin
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USA
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Magnification
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4× fixed
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Objective Lens Diameter
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32 mm
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Optical Design
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Fixed‑power prism sight (integral housing; no traditional maintube)
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Reticle
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Red Chevron .223/5.56 BDC (dual‑illuminated fiber optic / tritium)
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Illumination (ACOG)
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Automatic fiber (day) / self‑luminous tritium (night); battery‑free
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Piggyback Optic
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Trijicon RMR® Type 2 LED Red Dot, 3.25 MOA (CR2032 battery)
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Eye Relief
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1.5″ (38 mm)
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Field of View @ 100 yd
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36.8 ft (7°)
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Exit Pupil
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8.1 mm
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Adjustment Click Value
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½ MOA (≈2 clicks/inch @ 100 yd)
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Total Adjustment Range
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~40 MOA windage & elevation (typical TA31 spec)
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Parallax Focus
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Fixed at 100 m (≈109 yd)
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Overall Length
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~7.5″ assembled (ACOG + RMR + mount); ~5.8″ optic body only
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Weight
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15.1 oz ACOG optic only; ~20 oz class complete (ACOG + RMR + TA51)
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Housing Material / Finish
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Forged aluminum; matte black hard anodize
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Waterproof / Fog‑Proof
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Sealed; nitrogen‑purged; duty weather resistant
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Shock Resistance
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Combat‑rated for service calibers (.223/5.56 and beyond)
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Mount Interface
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TA51 flattop Picatinny thumbscrew adapter (included; factory‑mated RMR top plate)
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Included Accessories
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Trijicon ACOG 4×32 Red Chevron BDC optic (dual‑illum fiber/tritium)
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Factory‑mounted Trijicon RMR® Type 2 3.25 MOA Red LED (battery included)
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TA51 flattop Picatinny thumbscrew mount
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Adjuster cap lanyard assembly (TA71E)
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Lens cleaning tool (LensPen® style)
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Protective caps / basic hardware kit (style may vary)
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Trijicon logo sticker
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Owner’s manuals & warranty documentation (ACOG + RMR)
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