• Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle Rifle Scope Trijicon
  • Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle Rifle Scope Trijicon
  • Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle Rifle Scope Trijicon
  • Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle Rifle Scope Trijicon
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Trijicon

Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle

Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle

$1,499.99 USD
$1,499.99 USD
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Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle

Features

  • USMC Rifle Combat Optic (RCO) Configuration: Calibrated for the M16A4 20" barrel 5.56 NATO trajectory; issued‑pattern optic with government‑spec kit components.
  • Dual‑Illuminated, Battery‑Free Reticle: Fiber optics power the aiming point in daylight; tritium provides a self‑luminous glow in low/no light—always on, no batteries.
  • Red Chevron .223/5.56 BDC Reticle: Chevron tip is your 100 m zero; descending stadia provide holds for extended range with M16A4 velocity curves. Chevron width may be used for coarse range estimation on silhouette targets.
  • Rugged Forged 7075‑T6 Aluminum Housing: Combat‑proven ACOG durability—shock, recoil, and harsh‑environment resistant; hard‑anodized matte black finish.
  • Wide Situational Field of View: 7° (36.8 ft @ 100 yd) aids scanning and mover tracking while shooting both eyes open (BAC concept).
  • ½ MOA External Adjusters: 2 clicks/inch @100 yd windage & elevation; no tools required for gross correction (caps protect the adjusters).
  • Waterproof / Fog‑Proof: Deep‑water sealed construction; nitrogen‑purged for internal fog resistance.
  • USMC Kit Accessories: Typically ships with KillFlash® ARD, flip caps, TA51 flattop mount, and cleaning/maintenance items (see Included Accessories).
  • Made in USA & Backed by Trijicon Warranty.

Technical Specifications for Trijicon ACOG 4×32 USMC RCO Riflescope .223/5.56 BDC Red Chevron Reticle

Specification

Details

Manufacturer

Trijicon

Model / MPN

TA31RCO‑A4CP / 100226

SKU

TA31RCO‑A4CP

UPC

719307302068

Country of Origin

USA

Magnification

4× fixed

Objective Lens Diameter

32 mm

Optical Design

Fixed‑power prism (integral ACOG housing)

Reticle

Red Chevron .223/5.56 BDC (dual‑illum fiber optic / tritium)

Illumination

Fiber (daylight auto‑bright) / tritium (night); battery‑free

Eye Relief

1.5″ (38 mm)

Field of View @ 100 yd

36.8 ft (7°)

Exit Pupil

8.1 mm

Adjustment Click Value

½ MOA (≈2 clicks/inch @100 yd)

Total Adjustment Range

~40 MOA windage & elevation (ACOG 4×32 class)

Parallax Focus

Fixed ~100 m

Overall Length

5.8″ optic body (~6.7″ typical RCO kit w/ ARD / caps)

Weight

9.9 oz optic‑only; ~15–16 oz typical complete USMC RCO kit (mount, ARD, caps)

Housing Material / Finish

Forged aluminum; matte black hard anodize

Waterproof / Fog‑Proof

Sealed; nitrogen‑purged; deep‑water rated

Shock Resistance

Combat‑rated for duty calibers

Mount Interface

TA51 flattop Picatinny thumbscrew adapter (included)

Included Accessories (USMC RCO Package Contents)

  • TA31RCO‑A4CP 4×32 ACOG (Red Chevron .223/5.56 BDC)
  • TA51 flattop Picatinny thumbscrew mount (Colt‑style)
  • KillFlash® / ARD (anti‑reflection device)
  • Flip‑up objective & eyepiece caps (RCO pattern)
  • Adjuster cap lanyard assembly
  • Lens cleaning tool (LensPen® style)
  • Protective soft cover / packaging (varies)
  • Owner’s manual, RCO zeroing instructions & warranty materials

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