Trijicon ACOG 4x32mm Dual Illuminated Crosshair .223 BDC Ballistic Red Rifle Scope w/ RMR - 100550

Trijicon ACOG 4x32mm Dual Illuminated Crosshair .223 BDC Ballistic Red Rifle Scope w/ RMR - 100550 - Rifle Scope - view 1
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Trijicon

Overview

The Trijicon ACOG 4x32mm Dual Illuminated Crosshair .223 BDC Ballistic Red Rifle Scope is a fixed power scope designed for precision shooting. With 4X magnification and a 32mm objective diameter, it provides a clear and bright sight picture, while the BDC reticle offers ballistic compensation for .223 ammunition, ensuring accurate shooting at various distances. This scope is commonly found on mid-length gas system builds chambered in 5.56 NATO, making it ideal for both tactical and competitive applications.

Specifications

MPN100550
Reticle TypeBDC
Objective Diameter32mm
ColorFDE
Magnification4x
IlluminatedYes
Scope TypeFixed

Available Merchants(5)

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KY Gun Company
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Frequently Built With

Based on build data

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

94.1%
AR-1594.1%
AR-105.9%

Caliber

73.3%
5.56 NATO73.3%
.223 Wylde13.3%
.450 Bushmaster6.7%
6mm ARC6.7%

Gas System

46.2%
Mid-Length46.2%
Rifle30.8%
Carbine15.4%
Pistol7.7%
Frequently Built With Products
ProductCategoryTimes Built Together
Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers8
Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16"8
NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC7
Unity Tactical TAPS - Surefire / Laser - 9" - Black7
Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger7
Strike Industries Flat Wire Spring for AR Carbine - AR-FWS-C7
Build Platform Breakdown
PlatformPercentage
AR-1594.1%
AR-105.9%
Build Caliber Breakdown
CaliberPercentage
5.56 NATO73.3%
.223 Wylde13.3%
.450 Bushmaster6.7%
6mm ARC6.7%
Build Gas System Breakdown
Gas SystemPercentage
Mid-Length46.2%
Rifle30.8%
Carbine15.4%
Pistol7.7%

Builds Featuring This Part

See all 5

Builds in the community that include the Trijicon ACOG 4x32mm Dual Illuminated Crosshair .223 BDC Ballistic Red Rifle Scope w/ RMR - 100550

BuildPartsTotal
SBR 8" 5.56
24$3776.20
Aero Precision 18"
24$6625.38
LMT 18" .223 Wylde
30$7953.79
For 2 gun 16"
11$3747.14
yankee hill machine 14.5" build
14$2992.94

Customer reviews

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1 global rating

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Top reviews

M
michaelxx350x
ACOG zero holds rough handling
Reviewed on April 18, 2026Verified with Build

Trijicons ACOG 4x32 with the BDC reticle is the duty optic that earned its reputation. Removed and reinstalled three times during a class, zero never shifted. The piggyback RMR is a useful close range option. Battery free thanks to tritium fiber illumination.

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