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Aero Precision
Overview
The Aero Precision M4E1 Lower Receiver is a complete assembly designed for the AR-15 platform, featuring a trigger pin size of .154, which is compatible with most standard triggers. This lower is finished in a hardcoat anodized black, ensuring durability and a sleek appearance. It is optimized for the 5.56 NATO caliber, making it a solid choice for builds that focus on a mid-length gas system, commonly seen in versatile applications ranging from recreational shooting to tactical scenarios.
Based on build data

Aero Precision M4e1 Threaded Ar-15 Barreled Upper 5.56 Mid-Length Atlas R-One - 16"

Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers

NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC

Alg Defense Qms Ar-15 Trigger Set

Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C

Magpul AFG-2 Angled Fore Grip - Black
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Aero Precision M4e1 Threaded Ar-15 Barreled Upper 5.56 Mid-Length Atlas R-One - 16" | 27 | |
| Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers | 22 | |
| NcStar Pro Series Sight Front/Rear Flip Up, Black - VMARFLC | 21 | |
| Alg Defense Qms Ar-15 Trigger Set | 21 | |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | 18 | |
| Magpul AFG-2 Angled Fore Grip - Black | 18 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 66.7% |
| 300 Blackout | 14.3% |
| .223 Wylde | 14.3% |
| 6.5 Grendel | 4.8% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 50% |
| Carbine | 27.8% |
| Pistol | 11.1% |
| Rifle | 11.1% |
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