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Aero Precision
Overview
The Aero Precision M4E1 Complete Lower Receiver comes fully assembled and ready to integrate into your AR-15 build. Constructed from durable 7075-T6 aluminum, it features a hardcoat anodized finish for enhanced resistance to wear and corrosion. With a trigger pin diameter of .154 inches, this lower receiver is compatible with standard trigger components and is designed for use with the 5.56 NATO caliber, making it a solid choice for a variety of configurations, particularly those utilizing a mid-length gas system.
Based on build data

Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger

Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers

Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate

Bravo Company M16 Bolt Carrier Group Black

Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16"

Magpul Moe Sl-M Carbine Stock Mil-Spec Od Green
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 95 | |
| Aero Precision Ar-15 Breach Charging Handle Ambidextrous Small Levers | 49 | |
| Aero Precision Ar-15 5.56 Bcg W/c158 Bolt - Aero Logo - Phosphate | 43 | |
| Bravo Company M16 Bolt Carrier Group Black | 37 | |
| Bravo Company Manufacturing 5.56 Nato Mid-Length Bhf Ar-15 Barreled Upper - Mcmr-15 - 16" | 37 | |
| Magpul Moe Sl-M Carbine Stock Mil-Spec Od Green | 36 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 73.8% |
| .223 Wylde | 14.2% |
| 300 Blackout | 4.5% |
| .308 Win | 2.2% |
| 6mm ARC | 1.9% |
| .450 Bushmaster | 1.1% |
| .458 SOCOM | 0.7% |
| .350 Legend | 0.7% |
| .223 Remington | 0.4% |
| 9mm | 0.4% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 62.1% |
| Carbine | 17.8% |
| Rifle | 13.1% |
| Pistol | 6.1% |
| Intermediate | 0.5% |
| Proprietary | 0.5% |
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