M4 Upper Receiver Assembly No Handguards - Le6921 Upper Receiver 14.5 Barrel W/ Bcg & Charging Handle
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Colt
Overview
The Colt M4 Upper Receiver Assembly is a complete unit designed for the AR-15 platform, featuring a 14.5-inch barrel that is optimized for a balance of maneuverability and ballistic performance. This assembly includes the upper receiver, bolt carrier group (BCG), and charging handle, ensuring that builders have all the essential components for a reliable operation right out of the box. This type of upper is commonly found in builds aimed for both tactical applications and lightweight configurations.
Specifications
M4 Upper Receiver Assembly No Handguards - Le6921 Upper Receiver 14.5 Barrel W/ Bcg & Charging Handle
Frequently Built With
Based on build data
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
Lower Receiver
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Charging Handle
Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas BlockBuild Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
| Product | Category | Times Built Together |
|---|---|---|
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 360 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 259 |
| Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock | Lower Receiver | 231 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 166 |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | Charging Handle | 161 |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 143 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 70.7% |
| .223 Wylde | 10% |
| 300 Blackout | 6.9% |
| .308 Win | 3.6% |
| 9mm | 2.2% |
| .450 Bushmaster | 1.2% |
| 6mm ARC | 1.1% |
| 7.62x39mm | 0.9% |
| 6.5 Grendel | 0.9% |
| .458 SOCOM | 0.6% |
| .350 Legend | 0.3% |
| 6.5 Creedmoor | 0.3% |
| .45 ACP | 0.2% |
| .50 Beowulf | 0.2% |
| .223 Remington | 0.2% |
| 5.7x28mm | 0.1% |
| .22 LR | 0.1% |
| 7.62x51 NATO | 0.1% |
| 6.8 SPC II | 0.1% |
| .204 Ruger | 0.1% |
| .224 Valkyrie | 0.1% |
| .17 HMR | 0% |
| .22 ARC | 0% |
| 8.6 Blackout | 0% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 50.2% |
| Carbine | 24.5% |
| Rifle | 12.6% |
| Pistol | 11.3% |
| Blowback | 1.1% |
| Intermediate | 0.2% |
| Proprietary | 0.1% |
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