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

£1,699.99
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Flexible returns

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

Features

  • USMC Rifle Combat Optic (M4/M4A1 Spec): Ballistic calibration matched to the 14.5" M4/M4A1 5.56 NATO trajectory; issued‑pattern Marine Corps configuration.
  • Dual‑Illuminated, Battery‑Free: Fiber optics drive daytime brightness; 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 tuned for M4 velocities. Chevron width can be used for quick range estimation on silhouette targets.
  • Combat‑Proven Forged 7075‑T6 Housing: One‑piece ACOG chassis resists shock, recoil, and harsh environments; matte black hard anodize finish.
  • Both‑Eyes‑Open Speed (BAC): Bindon Aiming Concept™ lets you keep situational awareness at close range while retaining precise 4× magnification for distance.
  • ½ MOA External Adjusters: 2 clicks/inch @100 yd windage & elevation under protective caps; rugged internal prism adjustment holds zero.
  • Waterproof / Fog‑Proof: Sealed and nitrogen‑purged; deep‑water duty rated.
  • Issued‑Pattern Accessory Kit: Ships with KillFlash® ARD, flip caps, TA51 flattop mount, cleaning & maintenance items (see below).
  • 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‑M4CP / 100230

SKU

TA31RCO‑M4CP

UPC

719307302075

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 (auto‑bright daylight) / 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 (4×32 ACOG class)

Parallax Focus

Fixed ~100 m

Overall Length

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

Weight

~9.9 oz optic‑only; ~15–16 oz typical complete USMC RCO kit (w/ TA51, 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 Kit)

  • TA31RCO‑M4CP 4×32 ACOG (Red Chevron 5.56 BDC)
  • TA51 flattop Picatinny thumbscrew mount (Colt‑style)
  • TA91 KillFlash® / ARD (anti‑reflection device)
  • Flip‑up objective & eyepiece caps (RCO pattern; often TA96 Scopecoat also supplied)
  • Lens cleaning tool (LensPen® style)
  • Adjuster cap lanyard assembly (TA71E)
  • Trijicon logo sticker
  • RCO instruction manual (zeroing & use)
  • Warranty / registration materials

SEO Keywords
Trijicon TA31RCO‑M4CP, USMC RCO M4 ACOG, 4×32 Red Chevron 5.56 BDC, Marine Corps ACOG M4 optic, dual‑illum fiber tritium combat scope.

Frequently asked questions
What is the return policy?

Our goal is for every customer to be totally satisfied with their purchase. If this isn’t the case, let us know and we’ll do our best to work with you to make it right. 14 day return if you are not happy. Things must be unopened and in original packaging, unless it is faulty.
Are any purchases final sale?

No, you can cancel at anytime and will receive a full refund. We will always work with you.
When will I get my order?

Shipping & Delivery

  • We work quickly to process and ship your order as soon as possible.
  • Once your order has shipped, you’ll receive an email with full tracking details.

Delivery Times

  • Standard delivery from our USA suppliers: 7–10 working days (usually within a week)
  • UK Stock Collection items ship within 24 hours.

Stock & Sourcing

  • Due to limited demand, we do not hold inventory in the UK. All products ship direct from our USA suppliers to us then we ship to you so you don’t pay any imports fees.

Insurance & Guarantees

  • Orders over £300: Free Royal Mail Special Delivery (Guaranteed Next Day, Fully Insured)
  • Orders under £300: Royal Mail Tracked service for £3.99
Where are your products manufactured?

Our products are manufactured both in USA and globally. We carefully select our manufacturing partners to ensure our products are high quality and a fair value.

How much does shipping cost?

Shipping & Insurance

Orders over £300 ship free via Royal Mail Special Delivery, guaranteed next day and fully insured.


Orders under £300 ship via Royal Mail Tracked for a flat fee of £3.99.

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Customer Reviews

Based on 1 review
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N
Nicolas Chabbey
All good!

Happy with my purchase. Got the optics in CH in a little more than 2 weeks. Will buy again, definitively!