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Colt
Overview
The Colt M4 LE6933ERP Upper Group is a complete upper receiver designed for the AR-15 platform, featuring an 11.5-inch carbine contour barrel chambered in 5.56 NATO. Its carbine-length gas system ensures reliable cycling and performance, while the 1:7 twist rate stabilizes a range of bullet weights, making it versatile for various ammunition types. This upper is commonly found in builds focused on compactness and maneuverability, often used for tactical applications or close-quarters engagements.
Based on build data

Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Charging Handle
Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
Lower Receiver
Tacfire Ar-15 Mil-Spec Buffer Tube Kit
Buffer Assembly
Strike Industries AR Enhanced Castle Nut & Extended QD End Plate, Black - SI-AR-ECN&EEP-BK
End Plate
Timber Creek AR Buffer Tube, Black - AR BT BL
Buffer Assembly
EOTECH EXPS3-4 HWS and G45 Magnifier
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | Charging Handle | 3 |
| Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock | Lower Receiver | 3 |
| Tacfire Ar-15 Mil-Spec Buffer Tube Kit | Buffer Assembly | 2 |
| Strike Industries AR Enhanced Castle Nut & Extended QD End Plate, Black - SI-AR-ECN&EEP-BK | End Plate | 2 |
| Timber Creek AR Buffer Tube, Black - AR BT BL | Buffer Assembly | 1 |
| EOTECH EXPS3-4 HWS and G45 Magnifier | 1 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 100% |
| Gas System | Percentage |
|---|---|
| Carbine | 100% |
Builds in the community that include the Colt M4 Le6933erp Upper Group 11.5in With Bcg
| Build | Parts | Total |
|---|---|---|
![]() | 20 | $2135.52 |
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