Aero Precision M4E1 Lower Complete W/ MOE SL Grip & SL Stock
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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.
Specifications
Aero Precision M4E1 Lower Complete W/ MOE SL Grip & SL Stock
October 2026 on GunPartPicker
Aero Precision M4E1 Lower Complete W/ MOE SL Grip & SL Stock ranked #106 of the 588 lower receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #32 of the 1,217 lower receivers builders have added. Builds with this lower receiver are mostly chambered in 5.56 NATO (87%), mostly on mid-length gas (67%, then carbine-length 20%), and nearly all AR-15.
Today none of the 2 retailers we track has it in stock right now. Listed prices start at $212.99 at KY Gun Company for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by hundreds of builds that include this one
Aero Precision M4E1 Threaded AR-15 Barreled Upper 5.56 Mid-Length Atlas R-One - 16"
Geissele Automatics 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
Magpul AFG-2 Angled Fore Grip - Black
Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use 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.
Builds Featuring This Part
See all builds →Builds in the community that include the Aero Precision M4e1 Lower Complete W/ Moe Sl Grip & Sl Stock
| Build | Parts | Total |
|---|---|---|
 | 14 | $2079.74 |
 | 26 | $3270.74 |
 | 10 | $811.34 |
 | 9 | $1063.29 |
 | 12 | $1096.02 |
 | 13 | $1563.03 |
 | 5 | $849.42 |
| 8 | $2658.09 |
| 16 | $2927.43 |
 | 14 | $4048.70 |
 | 6 | $1227.98 |
| 13 | $2924.38 |
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