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Aero Precision
Overview
The Aero Precision M4E1 Stripped AR-15 Lower Receiver in Black is engineered from durable 7075-T6 aluminum, providing a solid foundation for your build. This stripped lower features a .154 trigger pin hole, making it compatible with a wide range of trigger options, and its hardcoat anodized finish enhances durability and corrosion resistance. This lower is frequently used in mid-length gas system builds chambered in 5.56 NATO, making it a versatile choice for those looking to create a reliable and accurate rifle.
Aero Precision M4E1 Stripped AR-15 Lower Receiver - Black
5 options
Prices checked
Aero Precision M4E1 Stripped AR-15 Lower Receiver - Black ranks #19 of the 521 lower receivers builders have added on GunPartPicker so far in October 2026, behind the Radian A-DAC 15 Stripped Lower Receiver, Brown - R0389, with about 1 in every 125 lower receivers added to builds. Up from #29 in September. Builds with this lower receiver are mostly chambered in 5.56 NATO (71%, then .223 Wylde 12%), split between mid-length (50%) and carbine-length (26%) gas systems, and nearly all AR-15.
It was out of stock everywhere we track for all of September 2026, and today none of the 5 retailers we track has it in stock right now. Listed prices start at $112.99 at Brownells for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every lower receiver by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Lower Receiver Trends →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Aero Precision M4e1 Stripped Ar-15 Lower Receiver - Black
| Build | Parts | Total |
|---|---|---|
 | 23 | $2933.81 |
 | 12 | $1396.64 |
 | 18 | $1218.29 |
 | 10 | $1500.36 |
 | 17 | $1450.08 |
 | 28 | $3966.26 |
 | 27 | $2039.34 |
 | 11 | $1115.10 |
 | 26 | $4359.44 |
 | 24 | $3261.48 |
| 14 | $1157.70 |
 | 8 | $674.93 |
1 global rating
Top reviews
tolerances on the takedown pin holes were correct, no slop. integrated trigger guard saves a step in the build. one nit, the aero logo on the magwell is placed a touch off center compared to my other M4E1, only OCD builders will notice
